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def get_symbolic_result (pareto_df, Feynman_pb, i_pareto = -1): """ Produces an SRBench style dictionary characterizing the best expression found. Parameters ---------- pareto_df : pd.DataFrame Pareto front dataframe generated by PhySO. Feynman_pb : physo.benchmark.FeynmanDataset.Feynman...
Produces an SRBench style dictionary characterizing the best expression found. Parameters ---------- pareto_df : pd.DataFrame Pareto front dataframe generated by PhySO. Feynman_pb : physo.benchmark.FeynmanDataset.FeynmanProblem.FeynmanProblem Related Feynman problem. i_pareto : ...
get_symbolic_result
python
WassimTenachi/PhySO
benchmarking/FeynmanBenchmark/feynman_results_analysis.py
https://github.com/WassimTenachi/PhySO/blob/master/benchmarking/FeynmanBenchmark/feynman_results_analysis.py
MIT
def load_run_data (pb_folder_prefix): """ Safely loads pareto front .csv and curves data .csv into dataframes if possible return None otherwise. Also returns noise level encoded into folder name. Parameters ---------- pb_folder_prefix : str or path Starting name of folder containing run ...
Safely loads pareto front .csv and curves data .csv into dataframes if possible return None otherwise. Also returns noise level encoded into folder name. Parameters ---------- pb_folder_prefix : str or path Starting name of folder containing run data (there should only be one folder startin...
load_run_data
python
WassimTenachi/PhySO
benchmarking/FeynmanBenchmark/feynman_results_analysis.py
https://github.com/WassimTenachi/PhySO/blob/master/benchmarking/FeynmanBenchmark/feynman_results_analysis.py
MIT
def load_class_equations_csv (filepath_eqs ="ClassEquations.csv"): """ Loads ClassEquations.csv into a pd.DataFrame. Parameters ---------- filepath_eqs : str Path to ClassEquations.csv. Returns ------- eqs_class_df : pd.DataFrame """ eqs_class_df = pd.read_csv(filepath_e...
Loads ClassEquations.csv into a pd.DataFrame. Parameters ---------- filepath_eqs : str Path to ClassEquations.csv. Returns ------- eqs_class_df : pd.DataFrame
load_class_equations_csv
python
WassimTenachi/PhySO
physo/benchmark/ClassDataset/ClassProblem.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/benchmark/ClassDataset/ClassProblem.py
MIT
def get_units (i_eq, i_var = 0, output_var = False): """ Gets units of variable. Parameters ---------- i_eq : int Equation number in the set of equations. i_var : int Variable id in its equation line. output_var : bool If True, returns units of output variable, otherw...
Gets units of variable. Parameters ---------- i_eq : int Equation number in the set of equations. i_var : int Variable id in its equation line. output_var : bool If True, returns units of output variable, otherwise returns units of input variable specified by i_var. ...
get_units
python
WassimTenachi/PhySO
physo/benchmark/ClassDataset/ClassProblem.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/benchmark/ClassDataset/ClassProblem.py
MIT
def __init__(self, i_eq = None, eq_name = None, original_var_names = False): """ Loads a Class problem based on its number in the set or its equation name. Parameters ---------- i_eq : int Equation number in the set of equations. eq_name : str Equa...
Loads a Class problem based on its number in the set or its equation name. Parameters ---------- i_eq : int Equation number in the set of equations. eq_name : str Equation name in the set of equations (e.g. 'Harmonic Oscillator'). original_var_nam...
__init__
python
WassimTenachi/PhySO
physo/benchmark/ClassDataset/ClassProblem.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/benchmark/ClassDataset/ClassProblem.py
MIT
def target_function(self, X, K): """ Evaluates X with target function, using K values. Parameters ---------- X : numpy.array of shape (n_vars, ?,) of floats Input variables. K : numpy.array of shape (n_spe,) of floats Spe free consts. Retur...
Evaluates X with target function, using K values. Parameters ---------- X : numpy.array of shape (n_vars, ?,) of floats Input variables. K : numpy.array of shape (n_spe,) of floats Spe free consts. Returns ------- y : numpy.array o...
target_function
python
WassimTenachi/PhySO
physo/benchmark/ClassDataset/ClassProblem.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/benchmark/ClassDataset/ClassProblem.py
MIT
def generate_data_points (self, n_samples = 1_000, n_realizations = 10, return_K = False): """ Generates data points accordingly for this Class problem. Parameters ---------- n_samples : int Number of samples to draw. By default, 1e3. n_realizations : int ...
Generates data points accordingly for this Class problem. Parameters ---------- n_samples : int Number of samples to draw. By default, 1e3. n_realizations : int Number of realizations to draw. By default, 10. return_K : bool If True, r...
generate_data_points
python
WassimTenachi/PhySO
physo/benchmark/ClassDataset/ClassProblem.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/benchmark/ClassDataset/ClassProblem.py
MIT
def get_sympy(self, K_vals=None): """ Gets sympy expression of the formula evaluated with spe free consts. Parameters ---------- K_vals : numpy.array of shape (?, n_spe,) of floats or None Values to evaluate spe free consts with, if None, uses random values and return...
Gets sympy expression of the formula evaluated with spe free consts. Parameters ---------- K_vals : numpy.array of shape (?, n_spe,) of floats or None Values to evaluate spe free consts with, if None, uses random values and returns only one realization. Returns ...
get_sympy
python
WassimTenachi/PhySO
physo/benchmark/ClassDataset/ClassProblem.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/benchmark/ClassDataset/ClassProblem.py
MIT
def get_units (var_name): """ Gets units of variable var_name. Example: get_units("kb") Parameters ---------- var_name : str original variable name. Returns ------- units : numpy.array of shape (FEYN_UNITS_VECTOR_SIZE,) of floats Units of variable. """ assert not ...
Gets units of variable var_name. Example: get_units("kb") Parameters ---------- var_name : str original variable name. Returns ------- units : numpy.array of shape (FEYN_UNITS_VECTOR_SIZE,) of floats Units of variable.
get_units
python
WassimTenachi/PhySO
physo/benchmark/FeynmanDataset/FeynmanProblem.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/benchmark/FeynmanDataset/FeynmanProblem.py
MIT
def __init__(self, i_eq = None, eq_name = None, original_var_names = False): """ Loads a Feynman problem based on its number in the set or its equation name Parameters ---------- i_eq : int Equation number in the whole set of equations (0 to 99 for bulk eqs and 100 to...
Loads a Feynman problem based on its number in the set or its equation name Parameters ---------- i_eq : int Equation number in the whole set of equations (0 to 99 for bulk eqs and 100 to 119 for bonus eqs). eq_name : str Equation name in the set of equat...
__init__
python
WassimTenachi/PhySO
physo/benchmark/FeynmanDataset/FeynmanProblem.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/benchmark/FeynmanDataset/FeynmanProblem.py
MIT
def target_function(self, X): """ Evaluates X with target function. Parameters ---------- X : numpy.array of shape (n_vars, ?,) of floats Returns ------- y : numpy.array of shape (?,) of floats """ # Getting sympy function f = sympy...
Evaluates X with target function. Parameters ---------- X : numpy.array of shape (n_vars, ?,) of floats Returns ------- y : numpy.array of shape (?,) of floats
target_function
python
WassimTenachi/PhySO
physo/benchmark/FeynmanDataset/FeynmanProblem.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/benchmark/FeynmanDataset/FeynmanProblem.py
MIT
def compare_expression (self, trial_expr, handle_trigo = True, prevent_zero_frac = True, prevent_inf_equivalence = True, round_decimal = 2, verbose=False...
Checks if trial_expr is symbolically equivalent to the target expression of this Feynman problem, following a similar methodology as SRBench (see https://github.com/cavalab/srbench). I.e, it is deemed equivalent if: - the symbolic difference simplifies to 0 - OR the symb...
compare_expression
python
WassimTenachi/PhySO
physo/benchmark/FeynmanDataset/FeynmanProblem.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/benchmark/FeynmanDataset/FeynmanProblem.py
MIT
def trial_function (self, trial_expr, X): """ Evaluates X on a trial expression mapping X to input variables names in sympy. Parameters ---------- trial_expr : Sympy Expression Trial sympy expression with evaluated numeric free constants and assumptions regarding vari...
Evaluates X on a trial expression mapping X to input variables names in sympy. Parameters ---------- trial_expr : Sympy Expression Trial sympy expression with evaluated numeric free constants and assumptions regarding variables (positivity etc.) encoded in expres...
trial_function
python
WassimTenachi/PhySO
physo/benchmark/FeynmanDataset/FeynmanProblem.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/benchmark/FeynmanDataset/FeynmanProblem.py
MIT
def read_pareto_csv (pareto_csv_path, sympy_X_symbols_dict = None, return_df = False): """ Loads a Pareto front csv generated by PhySO into sympy expressions with evaluated free constants. Only works for expressions not using dataset spe free constants (ie. Class SR tasks), in those cases, pkl loading i...
Loads a Pareto front csv generated by PhySO into sympy expressions with evaluated free constants. Only works for expressions not using dataset spe free constants (ie. Class SR tasks), in those cases, pkl loading is recommended instead (physo.read_pareto_pkl). Parameters ---------- pareto_csv_pa...
read_pareto_csv
python
WassimTenachi/PhySO
physo/benchmark/utils/read_logs.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/benchmark/utils/read_logs.py
MIT
def get_pareto_expressions_from_df (pareto_df, sympy_X_symbols_dict = None): """ Loads a Pareto front dataframe generated by PhySO into sympy expressions with evaluated free constants. Only works for expressions not using dataset spe free constants (ie. Class SR tasks). Parameters ---------- par...
Loads a Pareto front dataframe generated by PhySO into sympy expressions with evaluated free constants. Only works for expressions not using dataset spe free constants (ie. Class SR tasks). Parameters ---------- pareto_df : pd.DataFrame Pareto front dataframe generated by PhySO. sympy_X...
get_pareto_expressions_from_df
python
WassimTenachi/PhySO
physo/benchmark/utils/read_logs.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/benchmark/utils/read_logs.py
MIT
def replace_sin_by_cos (expr): """ Replaces sin(...) by cos(pi/2 - ...) in a sympy expression. Parameters ---------- expr : Sympy Expression Returns ------- ex1 : Sympy Expression """ ex1 = expr # If sin(...) is encountered, replacing it by cos(pi/2 - ...) for a in sympy....
Replaces sin(...) by cos(pi/2 - ...) in a sympy expression. Parameters ---------- expr : Sympy Expression Returns ------- ex1 : Sympy Expression
replace_sin_by_cos
python
WassimTenachi/PhySO
physo/benchmark/utils/symbolic_utils.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/benchmark/utils/symbolic_utils.py
MIT
def replace_cos_by_sin (expr): """ Replaces cos(...) by sin(pi/2 - ...) in a sympy expression. Parameters ---------- expr : Sympy Expression Returns ------- ex1 : Sympy Expression """ ex1 = expr # If cos(...) is encountered, replacing it by sin(pi/2 - ...) for a in sympy....
Replaces cos(...) by sin(pi/2 - ...) in a sympy expression. Parameters ---------- expr : Sympy Expression Returns ------- ex1 : Sympy Expression
replace_cos_by_sin
python
WassimTenachi/PhySO
physo/benchmark/utils/symbolic_utils.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/benchmark/utils/symbolic_utils.py
MIT
def round_floats(expr, round_decimal = 2): """ Rounds the floats in a sympy expression as in SRBench (see https://github.com/cavalab/srbench). Parameters ---------- expr : Sympy Expression round_decimal : int Rounding up to this decimal. Use round_decimal = 2 for SRBench-like beh...
Rounds the floats in a sympy expression as in SRBench (see https://github.com/cavalab/srbench). Parameters ---------- expr : Sympy Expression round_decimal : int Rounding up to this decimal. Use round_decimal = 2 for SRBench-like behavior (as they actually round up to 2 decimals). ...
round_floats
python
WassimTenachi/PhySO
physo/benchmark/utils/symbolic_utils.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/benchmark/utils/symbolic_utils.py
MIT
def clean_sympy_expr(expr, round_decimal = 2): """ Cleans (rounds floats, simplifies) sympy expression for symbolic comparison purposes as in SRBench (see https://github.com/cavalab/srbench). Parameters ---------- expr : Sympy Expression round_decimal : int Rounding up to this decima...
Cleans (rounds floats, simplifies) sympy expression for symbolic comparison purposes as in SRBench (see https://github.com/cavalab/srbench). Parameters ---------- expr : Sympy Expression round_decimal : int Rounding up to this decimal. Use round_decimal = 2 for SRBench-like beha...
clean_sympy_expr
python
WassimTenachi/PhySO
physo/benchmark/utils/symbolic_utils.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/benchmark/utils/symbolic_utils.py
MIT
def compare_expression (trial_expr, target_expr, handle_trigo = True, prevent_zero_frac = True, prevent_inf_equivalence = True, round_decimal = 2, verbose=Fals...
Checks if trial_expr is symbolically equivalent to target_expr, following a similar methodology as SRBench (see https://github.com/cavalab/srbench). I.e, it is deemed equivalent if: - the symbolic difference simplifies to 0 - OR the symbolic difference is a constant - OR the symboli...
compare_expression
python
WassimTenachi/PhySO
physo/benchmark/utils/symbolic_utils.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/benchmark/utils/symbolic_utils.py
MIT
def expression_size(expr): """ Evaluates complexity as in SRBench (see https://github.com/cavalab/srbench). Parameters ---------- expr : Sympy Expression Returns ------- c : int """ c=0 for arg in sympy.preorder_traversal(expr): c += 1 return c
Evaluates complexity as in SRBench (see https://github.com/cavalab/srbench). Parameters ---------- expr : Sympy Expression Returns ------- c : int
expression_size
python
WassimTenachi/PhySO
physo/benchmark/utils/symbolic_utils.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/benchmark/utils/symbolic_utils.py
MIT
def sympy_to_prefix(sympy_expr): """ Converts a sympy expression to prefix notation. Parameters ---------- sympy_expr : sympy.core Sympy expression Returns ------- dict : tokens_str : numpy.array of str List of tokens in the expression. arities : numpy...
Converts a sympy expression to prefix notation. Parameters ---------- sympy_expr : sympy.core Sympy expression Returns ------- dict : tokens_str : numpy.array of str List of tokens in the expression. arities : numpy.array of int List of aritie...
sympy_to_prefix
python
WassimTenachi/PhySO
physo/benchmark/utils/symbolic_utils.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/benchmark/utils/symbolic_utils.py
MIT
def sympy_symbol_with_assumptions_from_range(name, low, high): """ Returns a sympy symbol with assumptions from its data range. Parameters ---------- name : str Name of the variable. low : float Lowest value taken by the variable. high : float Highest value taken by t...
Returns a sympy symbol with assumptions from its data range. Parameters ---------- name : str Name of the variable. low : float Lowest value taken by the variable. high : float Highest value taken by the variable. Returns ------- sympy.Symbol
sympy_symbol_with_assumptions_from_range
python
WassimTenachi/PhySO
physo/benchmark/utils/symbolic_utils.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/benchmark/utils/symbolic_utils.py
MIT
def timeout(seconds=10, error_message=os.strerror(errno.ETIME)): """ # Works on UNIX only # https://stackoverflow.com/questions/2281850/timeout-function-if-it-takes-too-long-to-finish Demo: @timeout(20) def myfunc(n): time.sleep(n) return True myfunc(n>20) will be killed ...
# Works on UNIX only # https://stackoverflow.com/questions/2281850/timeout-function-if-it-takes-too-long-to-finish Demo: @timeout(20) def myfunc(n): time.sleep(n) return True myfunc(n>20) will be killed
timeout
python
WassimTenachi/PhySO
physo/benchmark/utils/timeout_unix.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/benchmark/utils/timeout_unix.py
MIT
def loss_func(logits_train, ideal_probs_train, R_train, baseline, lengths, gamma_decay, entropy_weight, ): """ Loss function for reinforcing symbolic programs. Parameters ---------- logits_train : torch.tensor of shape (max_time_step, n_train, n_choices,) Probabilities generated by the...
Loss function for reinforcing symbolic programs. Parameters ---------- logits_train : torch.tensor of shape (max_time_step, n_train, n_choices,) Probabilities generated by the rnn (for each step along program length, for each program in training sub-batch, for each choosable token...
loss_func
python
WassimTenachi/PhySO
physo/learn/loss.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/learn/loss.py
MIT
def save_pareto_pkl (pareto_progs, fpath): """ Save pareto programs to pickle file. Parameters ---------- pareto_progs : list of Program.Program List of pareto programs. fpath : str Path to pkl file. """ with open(fpath, 'wb') as f: pickle.dump(pareto_progs, f) ...
Save pareto programs to pickle file. Parameters ---------- pareto_progs : list of Program.Program List of pareto programs. fpath : str Path to pkl file.
save_pareto_pkl
python
WassimTenachi/PhySO
physo/learn/monitoring.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/learn/monitoring.py
MIT
def read_pareto_pkl (fpath): """ Load pareto programs from pickle file. Parameters ---------- fpath : str Path to pkl file. Returns ------- pareto_progs : list of Program.Program List of pareto programs. """ with open(fpath, 'rb') as f: pareto_progs = pick...
Load pareto programs from pickle file. Parameters ---------- fpath : str Path to pkl file. Returns ------- pareto_progs : list of Program.Program List of pareto programs.
read_pareto_pkl
python
WassimTenachi/PhySO
physo/learn/monitoring.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/learn/monitoring.py
MIT
def __init__(self, library_args, priors_config, multi_X, multi_y, rewards_computer, batch_size, max_time_step, multi_y_weights = 1., free_const_opti_args = None, ...
Parameters ---------- library_args: dict Arguments passed to library.__init__ priors_config : list of couples (str : dict) List of priors. List containing couples with prior name as first item in couple (see prior.PRIORS_DICT for list of available pri...
__init__
python
WassimTenachi/PhySO
physo/physym/batch.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/physym/batch.py
MIT
def get_sibling_one_hot (self, step = None): """ Get siblings one hot of tokens at step. 0 one hot vectors for dummies. Parameters ---------- step : int Step of token from which sibling one hot should be returned. By default, step = current step Re...
Get siblings one hot of tokens at step. 0 one hot vectors for dummies. Parameters ---------- step : int Step of token from which sibling one hot should be returned. By default, step = current step Returns ------- one_hot : numpy.array of s...
get_sibling_one_hot
python
WassimTenachi/PhySO
physo/physym/batch.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/physym/batch.py
MIT
def get_parent_one_hot (self, step = None): """ Get parents one hot of tokens at step. Parameters ---------- step : int Step of token from which parent one hot should be returned. By default, step = current step Returns ------- one_...
Get parents one hot of tokens at step. Parameters ---------- step : int Step of token from which parent one hot should be returned. By default, step = current step Returns ------- one_hot : numpy.array of shape (batch_size, n_choices) of i...
get_parent_one_hot
python
WassimTenachi/PhySO
physo/physym/batch.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/physym/batch.py
MIT
def get_previous_tokens_one_hot(self): """ Get previous step tokens as one hot. Returns ------- one_hot : numpy.array of shape (batch_size, n_choices) of int One hot. """ # Return 0 if 0th step if self.programs.curr_step == 0: one_h...
Get previous step tokens as one hot. Returns ------- one_hot : numpy.array of shape (batch_size, n_choices) of int One hot.
get_previous_tokens_one_hot
python
WassimTenachi/PhySO
physo/physym/batch.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/physym/batch.py
MIT
def get_sibling_units_obs (self, step = None): """ Get (required) units of sibling of tokens at step. Filling using INTERFACE_UNITS_UNAVAILABLE_FILLER where units are not available. Adding a vector in addition to the units indicating if units are available or not (equal to INTERFACE_UNIT...
Get (required) units of sibling of tokens at step. Filling using INTERFACE_UNITS_UNAVAILABLE_FILLER where units are not available. Adding a vector in addition to the units indicating if units are available or not (equal to INTERFACE_UNITS_AVAILABLE where units are available and equal to INTERFA...
get_sibling_units_obs
python
WassimTenachi/PhySO
physo/physym/batch.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/physym/batch.py
MIT
def get_parent_units_obs (self, step = None): """ Get (required) units of parent of tokens at step. Filling using INTERFACE_UNITS_UNAVAILABLE_FILLER where units are not available. Adding a vector in addition to the units indicating if units are available or not (equal to INTERFACE_UNITS_...
Get (required) units of parent of tokens at step. Filling using INTERFACE_UNITS_UNAVAILABLE_FILLER where units are not available. Adding a vector in addition to the units indicating if units are available or not (equal to INTERFACE_UNITS_AVAILABLE where units are available and equal to INTERFAC...
get_parent_units_obs
python
WassimTenachi/PhySO
physo/physym/batch.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/physym/batch.py
MIT
def get_previous_tokens_units_obs (self, step = None): """ Get (required) units of tokens before step. Filling using INTERFACE_UNITS_UNAVAILABLE_FILLER where units are not available. Adding a vector in addition to the units indicating if units are available or not (equal to INTERFACE_UNI...
Get (required) units of tokens before step. Filling using INTERFACE_UNITS_UNAVAILABLE_FILLER where units are not available. Adding a vector in addition to the units indicating if units are available or not (equal to INTERFACE_UNITS_AVAILABLE where units are available and equal to INTERFACE_UNIT...
get_previous_tokens_units_obs
python
WassimTenachi/PhySO
physo/physym/batch.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/physym/batch.py
MIT
def get_tokens_units_obs (self, step = None): """ Get (required) units of tokens at step. Filling using INTERFACE_UNITS_UNAVAILABLE_FILLER where units are not available. Adding a vector in addition to the units indicating if units are available or not (equal to INTERFACE_UNITS_AVAILABLE ...
Get (required) units of tokens at step. Filling using INTERFACE_UNITS_UNAVAILABLE_FILLER where units are not available. Adding a vector in addition to the units indicating if units are available or not (equal to INTERFACE_UNITS_AVAILABLE where units are available and equal to INTERFACE_UNITS_UN...
get_tokens_units_obs
python
WassimTenachi/PhySO
physo/physym/batch.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/physym/batch.py
MIT
def get_obs(self): """ Computes observation of current step for symbolic regression task. Returns ------- obs : numpy.array of shape (batch_size, 3*n_choices+1,) of float """ # Relatives one-hots parent_one_hot = self.get_parent_one_hot() ...
Computes observation of current step for symbolic regression task. Returns ------- obs : numpy.array of shape (batch_size, 3*n_choices+1,) of float
get_obs
python
WassimTenachi/PhySO
physo/physym/batch.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/physym/batch.py
MIT
def get_rewards (self): """ Computes rewards of programs contained in batch. Returns ------- rewards : numpy.array of shape (batch_size,) of float Rewards of programs. """ rewards = self.rewards_computer(programs = self.programs, ...
Computes rewards of programs contained in batch. Returns ------- rewards : numpy.array of shape (batch_size,) of float Rewards of programs.
get_rewards
python
WassimTenachi/PhySO
physo/physym/batch.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/physym/batch.py
MIT
def ParallelExeAvailability(verbose=False): """ Checks if parallel run is available on this system and produces a recommended config. Parameters ---------- verbose : bool Prints log. Returns ------- recommended_config : dict bool recommended_config[parallel_mode] : will p...
Checks if parallel run is available on this system and produces a recommended config. Parameters ---------- verbose : bool Prints log. Returns ------- recommended_config : dict bool recommended_config[parallel_mode] : will parallel mode work on this system ? int rec...
ParallelExeAvailability
python
WassimTenachi/PhySO
physo/physym/batch_execute.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/physym/batch_execute.py
MIT
def BatchExecution (progs, X, # Realization related i_realization = 0, n_samples_per_dataset = None, # Mask mask = None, pad_with = np.NaN, # Parallel mode related ...
Executes prog(X) for each prog in progs and returns the results. NB: Parallel execution is typically slower because of communication time (parallel_mode = False is recommended). Parallel mode causes inter-process communication errors on some systems (probably due to the large number of information to p...
BatchExecution
python
WassimTenachi/PhySO
physo/physym/batch_execute.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/physym/batch_execute.py
MIT
def BatchExecutionReduceGather (progs, X, reduce_wrapper, # Realization related i_realization = 0, n_samples_per_dataset = None, # Mask mask = None,...
Executes prog(X) for each prog in progs and gathers reduce_wrapper(prog(X)) as a result. NB: Parallel execution is typically slower because of communication time (even just gathering a float). Parameters ---------- progs : vect_programs.VectPrograms Programs in the batch. X : torch.tens...
BatchExecutionReduceGather
python
WassimTenachi/PhySO
physo/physym/batch_execute.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/physym/batch_execute.py
MIT
def BatchExecutionReward (progs, X, y_target, reward_function, y_weights = 1., # Realization related i_realization = 0, n_samples_per_dataset = None, # Mask mask = None, ...
Executes prog(X) for each prog in progs and gathers reward_function(y_target, prog(X), y_weights) as a result. NB: Parallel execution is typically slower because of communication time (even just gathering a float). Parameters ---------- progs : vect_programs.VectPrograms Programs in the bat...
BatchExecutionReward
python
WassimTenachi/PhySO
physo/physym/batch_execute.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/physym/batch_execute.py
MIT
def BatchFreeConstOpti (progs, X, y_target, free_const_opti_args=None, y_weights = 1., # Realization related i_realization = 0, n_samples_per_dataset = None, # Mask mask = None, ...
Optimizes the free constants of each program in progs. NB: Parallel execution is typically faster. Parameters ---------- progs : vect_programs.VectPrograms Programs in the batch. X : torch.tensor of shape (n_dim, n_samples,) of float Values of the input variables of the problem ...
BatchFreeConstOpti
python
WassimTenachi/PhySO
physo/physym/batch_execute.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/physym/batch_execute.py
MIT
def inspect_Xy (X, y): """ Runs assertions and analyzes shape of a single dataset corresponding to a single realization. Converts to torch if necessary. Parameters ---------- X : torch.tensor of shape (n_dim, data_size,) of float Values of the input variables of the problem with n_dim = ...
Runs assertions and analyzes shape of a single dataset corresponding to a single realization. Converts to torch if necessary. Parameters ---------- X : torch.tensor of shape (n_dim, data_size,) of float Values of the input variables of the problem with n_dim = nb of input variables, and dat...
inspect_Xy
python
WassimTenachi/PhySO
physo/physym/dataset.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/physym/dataset.py
MIT
def inspect_multi_y_weights (multi_y_weights, multi_y): """ Runs assertions and analyzes shape of multi_y_weights. Converts to torch if necessary. Parameters ---------- multi_y_weights : list of len (n_realizations,) of torch.tensor of shape (?,) of float or array_like of (n_...
Runs assertions and analyzes shape of multi_y_weights. Converts to torch if necessary. Parameters ---------- multi_y_weights : list of len (n_realizations,) of torch.tensor of shape (?,) of float or array_like of (n_realizations,) of float or float, optional ...
inspect_multi_y_weights
python
WassimTenachi/PhySO
physo/physym/dataset.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/physym/dataset.py
MIT
def __init__(self, multi_X, multi_y, multi_y_weights=1., library=None): """ Parameters ---------- multi_X : list of len (n_realizations,) of torch.tensor of shape (n_dim, ?,) of float List of X (one per realization). With X being values of the input variables of the problem w...
Parameters ---------- multi_X : list of len (n_realizations,) of torch.tensor of shape (n_dim, ?,) of float List of X (one per realization). With X being values of the input variables of the problem with n_dim = nb of input variables. multi_y : list of len (n_re...
__init__
python
WassimTenachi/PhySO
physo/physym/dataset.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/physym/dataset.py
MIT
def assign_required_units_at_step (programs, step = None, from_scratch = False): """ Usage: computes units that will be used to update units of dummy representing next token to guess Must be able to work with coords instead of step to work so it can be used on next token to guess dummies and not - void ...
Usage: computes units that will be used to update units of dummy representing next token to guess Must be able to work with coords instead of step to work so it can be used on next token to guess dummies and not - void tokens. Parameters ---------- programs : vect_programs.VectPrograms ...
assign_required_units_at_step
python
WassimTenachi/PhySO
physo/physym/dimensional_analysis.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/physym/dimensional_analysis.py
MIT
def assign_required_units(programs, coords,): """ Computes and assigns physical units requirements to tokens at coords, works with complete or incomplete programs (containing dummies). In certain cases, a bottom-up physical units computation and assignment is performed on whole subtrees of programs ...
Computes and assigns physical units requirements to tokens at coords, works with complete or incomplete programs (containing dummies). In certain cases, a bottom-up physical units computation and assignment is performed on whole subtrees of programs as it is necessary to compute the units constraints o...
assign_required_units
python
WassimTenachi/PhySO
physo/physym/dimensional_analysis.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/physym/dimensional_analysis.py
MIT
def assign_units_bottom_up (programs, coords_start, coords_end): """ Performs a bottom up (in the tree representation of programs) dimensional analysis and assigns units along the way for multiple subtrees. Parameters ---------- programs : vect_programs.VectPrograms Programs on which bot...
Performs a bottom up (in the tree representation of programs) dimensional analysis and assigns units along the way for multiple subtrees. Parameters ---------- programs : vect_programs.VectPrograms Programs on which bottom up units assignment should be performed. coords_start : numpy.ar...
assign_units_bottom_up
python
WassimTenachi/PhySO
physo/physym/dimensional_analysis.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/physym/dimensional_analysis.py
MIT
def ExecuteProgram (input_var_data, program_tokens, class_free_consts_vals=None, spe_free_consts_vals=None): """ Executes a symbolic function program. Parameters ---------- input_var_data : torch.tensor of shape (n_dim, ?,) of float Values of the input variables of the problem with n_dim = n...
Executes a symbolic function program. Parameters ---------- input_var_data : torch.tensor of shape (n_dim, ?,) of float Values of the input variables of the problem with n_dim = nb of input variables. program_tokens : list of token.Token Symbolic function program in reverse Polish n...
ExecuteProgram
python
WassimTenachi/PhySO
physo/physym/execute.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/physym/execute.py
MIT
def ComputeInfixNotation (program_tokens): """ Computes infix str representation of a program. (which is the usual way to note symbolic function: +34 (in polish notation) = 3+4 (in infix notation)) Parameters ---------- program_tokens : list of token.Token List of tokens making up the pr...
Computes infix str representation of a program. (which is the usual way to note symbolic function: +34 (in polish notation) = 3+4 (in infix notation)) Parameters ---------- program_tokens : list of token.Token List of tokens making up the program. Returns ------- program_str : s...
ComputeInfixNotation
python
WassimTenachi/PhySO
physo/physym/execute.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/physym/execute.py
MIT
def __init__(self, batch_size, library, n_realizations=1): """" Parameters ---------- batch_size : int Number of programs in batch. library : library.Library Library of tokens that can appear in programs. n_realizations : int Number of ...
" Parameters ---------- batch_size : int Number of programs in batch. library : library.Library Library of tokens that can appear in programs. n_realizations : int Number of realizations for each program, ie. number of datasets each program has...
__init__
python
WassimTenachi/PhySO
physo/physym/free_const.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/physym/free_const.py
MIT
def reset_class_values (self): """ Reset class free constants values to initial values. """ init_val = self.library.class_free_constants_init_val # (n_class_free_const,) of float # Free constants values for each program as torch tensor for fast computation...
Reset class free constants values to initial values.
reset_class_values
python
WassimTenachi/PhySO
physo/physym/free_const.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/physym/free_const.py
MIT
def reset_spe_values (self): """ Reset spe free constants values to initial values. """ # Check and pad init_val if necessary to match n_realizations (for single float init val) self.library.check_and_pad_spe_free_const_init_val (self.n_realizations) init_val = self.libra...
Reset spe free constants values to initial values.
reset_spe_values
python
WassimTenachi/PhySO
physo/physym/free_const.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/physym/free_const.py
MIT
def detach (self): """ Detach values from computation graph and copies is_opti and opti_steps to detach them from higher level table if there is one. """ self.class_values = self.class_values.clone().detach() self.spe_values = self.spe_values .clone().detach() ...
Detach values from computation graph and copies is_opti and opti_steps to detach them from higher level table if there is one.
detach
python
WassimTenachi/PhySO
physo/physym/free_const.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/physym/free_const.py
MIT
def get_const_of_prog (self, prog_idx): """ Return a FreeConstantsTable object with values for a single program (batch_size=1). """ res = FreeConstantsTable (batch_size=1, library=self.library, n_realizations=self.n_realizations) # Returning arrays of (1,...) to have a reference ...
Return a FreeConstantsTable object with values for a single program (batch_size=1).
get_const_of_prog
python
WassimTenachi/PhySO
physo/physym/free_const.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/physym/free_const.py
MIT
def flatten_like_data (self, n_samples_per_dataset): """ Flattens free constants values to match flattened datasets. This is useful for computing together class free consts and spe free consts and all datasets at the same time during a single program execution. Parameters ...
Flattens free constants values to match flattened datasets. This is useful for computing together class free consts and spe free consts and all datasets at the same time during a single program execution. Parameters ---------- n_samples_per_dataset : array_like of shape ...
flatten_like_data
python
WassimTenachi/PhySO
physo/physym/free_const.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/physym/free_const.py
MIT
def df (self): """ Return a pandas dataframe with free constants values. Returns ------- df : pandas.DataFrame Dataframe with free constants values of shape (batch_size, n_class_free_const + n_spe_free_const*n_realizations). """ # Class free const df ...
Return a pandas dataframe with free constants values. Returns ------- df : pandas.DataFrame Dataframe with free constants values of shape (batch_size, n_class_free_const + n_spe_free_const*n_realizations).
df
python
WassimTenachi/PhySO
physo/physym/free_const.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/physym/free_const.py
MIT
def MSE_loss (func, params, y_target, y_weights = 1.): """ Loss for free constant optimization. Parameters ---------- func : callable Function which's constants should be optimized taking params as argument. params : list of torch.tensor Free constants to optimize. y_target :...
Loss for free constant optimization. Parameters ---------- func : callable Function which's constants should be optimized taking params as argument. params : list of torch.tensor Free constants to optimize. y_target : torch.tensor of shape (?,) Target output of function....
MSE_loss
python
WassimTenachi/PhySO
physo/physym/free_const.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/physym/free_const.py
MIT
def LBFGS_optimizer (params, f, n_steps=10, tol=1e-6, lbfgs_func_args={}): """ Params optimizer (wrapper around torch.optim.LBFGS). See: https://pytorch.org/docs/stable/generated/torch.optim.LBFGS.html Parameters ---------- params : list of torch.tensor Free constants to optimize. f ...
Params optimizer (wrapper around torch.optim.LBFGS). See: https://pytorch.org/docs/stable/generated/torch.optim.LBFGS.html Parameters ---------- params : list of torch.tensor Free constants to optimize. f : callable Function to minimize, taking params as argument. n_steps : ...
LBFGS_optimizer
python
WassimTenachi/PhySO
physo/physym/free_const.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/physym/free_const.py
MIT
def optimize_free_const (func, params, y_target, y_weights = 1., loss = "MSE", method = "LBFGS", method_args = None): """ Optimizes free constants p...
Optimizes free constants params so that func output matches y_target. Parameters ---------- func : callable Function which's constants should be optimized taking params as argument. params : list of torch.tensor Free constants to optimize. y_target : torch.tensor of shape (?,) ...
optimize_free_const
python
WassimTenachi/PhySO
physo/physym/free_const.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/physym/free_const.py
MIT
def __init__(self, custom_tokens = None, args_make_tokens = None, superparent_units = None, superparent_name = "y"): """ Defines choosable tokens in the library. Parameters ---------- args_make_tokens : dict or None If not None, arguments are passed to tokenize.make_t...
Defines choosable tokens in the library. Parameters ---------- args_make_tokens : dict or None If not None, arguments are passed to tokenize.make_tokens and tokens are added to the library. custom_tokens : list of token.Token or None If not None, the toke...
__init__
python
WassimTenachi/PhySO
physo/physym/library.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/physym/library.py
MIT
def check_and_pad_spe_free_const_init_val (self, n_realizations): """ Asserts that the sizes of free constants init values for each realization are consistent with the number of realizations (n_realizations) and makes the necessary padding to ensure a shape of (n_realizations,) (for sing...
Asserts that the sizes of free constants init values for each realization are consistent with the number of realizations (n_realizations) and makes the necessary padding to ensure a shape of (n_realizations,) (for single float initial values). Parameters ---------- n_rea...
check_and_pad_spe_free_const_init_val
python
WassimTenachi/PhySO
physo/physym/library.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/physym/library.py
MIT
def assert_units(self): """ Checks if all terminal tokens (arity = 0) have units constraints ie if units constraints can be computed. Tokens in library come from various units assignments processes (from make_tokens : operation definition in functions.py, input_var_units dict, constants_...
Checks if all terminal tokens (arity = 0) have units constraints ie if units constraints can be computed. Tokens in library come from various units assignments processes (from make_tokens : operation definition in functions.py, input_var_units dict, constants_units dict ; from custom tokens ; s...
assert_units
python
WassimTenachi/PhySO
physo/physym/library.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/physym/library.py
MIT
def __init__(self, library, programs): """ Parameters ---------- library : library.Library Library of choosable tokens. programs : vect_programs.VectPrograms Programs in the batch. """ self.lib = library self.progs = progr...
Parameters ---------- library : library.Library Library of choosable tokens. programs : vect_programs.VectPrograms Programs in the batch.
__init__
python
WassimTenachi/PhySO
physo/physym/prior.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/physym/prior.py
MIT
def __init__(self, library, programs): """ Parameters ---------- library : library.Library programs : vect_programs.VectPrograms """ Prior.__init__(self, library, programs) # Number of tokens per arity # Sum of tokens having arity = idx on choosabl...
Parameters ---------- library : library.Library programs : vect_programs.VectPrograms
__init__
python
WassimTenachi/PhySO
physo/physym/prior.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/physym/prior.py
MIT
def __init__(self, library, programs, min_length, max_length): """ Parameters ---------- library : library.Library programs : vect_programs.VectPrograms min_length : float Minimum length that programs are allowed to have. max_length : float ...
Parameters ---------- library : library.Library programs : vect_programs.VectPrograms min_length : float Minimum length that programs are allowed to have. max_length : float Maximum length that programs are allowed to have.
__init__
python
WassimTenachi/PhySO
physo/physym/prior.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/physym/prior.py
MIT
def __init__(self, library, programs, effectors, relationship, targets, max_nb_violations = None): """ Enforcing that [targets] cannot be the [relationship] of [effectors]. Parameters ---------- library : library.Library programs : vect_programs.VectPrograms effec...
Enforcing that [targets] cannot be the [relationship] of [effectors]. Parameters ---------- library : library.Library programs : vect_programs.VectPrograms effectors : list of str List of effector tokens' name. relationship : str Relations...
__init__
python
WassimTenachi/PhySO
physo/physym/prior.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/physym/prior.py
MIT
def __init__(self, library, programs,): """ Enforcing functions are not child of their inverse function. Parameters ---------- library : library.Library programs : vect_programs.VectPrograms """ Prior.__init__(self, library, programs) # Considerin...
Enforcing functions are not child of their inverse function. Parameters ---------- library : library.Library programs : vect_programs.VectPrograms
__init__
python
WassimTenachi/PhySO
physo/physym/prior.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/physym/prior.py
MIT
def __init__(self, library, programs, functions, max_nesting = 1): """ Enforcing that [functions] can not be nested or only up to max_nesting level. Parameters ---------- library : library.Library programs : vect_programs.VectPrograms functions : list of str ...
Enforcing that [functions] can not be nested or only up to max_nesting level. Parameters ---------- library : library.Library programs : vect_programs.VectPrograms functions : list of str List of tokens' names which's nesting will be forbidden. max_ne...
__init__
python
WassimTenachi/PhySO
physo/physym/prior.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/physym/prior.py
MIT
def __init__(self, library, programs, max_nesting = 1): """ Enforcing that trigonometric functions can not be nested or only up to max_nesting level. Parameters ---------- library : library.Library programs : vect_programs.VectPrograms max_nesting : int ...
Enforcing that trigonometric functions can not be nested or only up to max_nesting level. Parameters ---------- library : library.Library programs : vect_programs.VectPrograms max_nesting : int Max level of nesting allowed. By default = 1, no nesting allowed....
__init__
python
WassimTenachi/PhySO
physo/physym/prior.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/physym/prior.py
MIT
def __init__(self, library, programs, targets, max): """ Parameters ---------- library : library.Library programs : vect_programs.VectPrograms targets : list of str List of tokens' names which's number of occurrences should be constrained. max : list o...
Parameters ---------- library : library.Library programs : vect_programs.VectPrograms targets : list of str List of tokens' names which's number of occurrences should be constrained. max : list of int List of maximum occurrences of tokens (must ha...
__init__
python
WassimTenachi/PhySO
physo/physym/prior.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/physym/prior.py
MIT
def __init__(self, library, programs, expression): """ Parameters ---------- library : library.Library programs : vect_programs.VectPrograms expression : list of str List of tokens to enforce. expression may contain library.invalid.name (ie. Tok.INVALID_TOKEN_...
Parameters ---------- library : library.Library programs : vect_programs.VectPrograms expression : list of str List of tokens to enforce. expression may contain library.invalid.name (ie. Tok.INVALID_TOKEN_NAME) in which case all tokens are allowed. All to...
__init__
python
WassimTenachi/PhySO
physo/physym/prior.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/physym/prior.py
MIT
def __init__(self, library, programs, prob_eps = 0.): """ Parameters ---------- library : library.Library programs : vect_programs.VectPrograms prob_eps : float Value to return for the prior inplace of zeros (useful for avoiding sampling problems) """ ...
Parameters ---------- library : library.Library programs : vect_programs.VectPrograms prob_eps : float Value to return for the prior inplace of zeros (useful for avoiding sampling problems)
__init__
python
WassimTenachi/PhySO
physo/physym/prior.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/physym/prior.py
MIT
def make_PriorCollection (library, programs, priors_config,): """ Makes PriorCollection object from arguments. Parameters ---------- library : library.Library Library of choosable tokens. programs : vect_programs.VectPrograms Programs in the batch. priors_config : list of cou...
Makes PriorCollection object from arguments. Parameters ---------- library : library.Library Library of choosable tokens. programs : vect_programs.VectPrograms Programs in the batch. priors_config : list of couples (str : dict) List of priors. List containing couples wit...
make_PriorCollection
python
WassimTenachi/PhySO
physo/physym/prior.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/physym/prior.py
MIT
def __init__(self, library, programs,): """ Parameters ---------- library : library.Library Library of choosable tokens. programs : vect_programs.VectPrograms Programs in the batch. """ self.priors = [] self.lib = library ...
Parameters ---------- library : library.Library Library of choosable tokens. programs : vect_programs.VectPrograms Programs in the batch.
__init__
python
WassimTenachi/PhySO
physo/physym/prior.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/physym/prior.py
MIT
def __call__(self): """ Returns probabilities of priors for each choosable token in the library. Returns ------- mask_probabilities : numpy.array of shape (self.progs.batch_size, self.lib.n_choices) of float """ res = self.init_prob for prior in self.prior...
Returns probabilities of priors for each choosable token in the library. Returns ------- mask_probabilities : numpy.array of shape (self.progs.batch_size, self.lib.n_choices) of float
__call__
python
WassimTenachi/PhySO
physo/physym/prior.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/physym/prior.py
MIT
def __init__(self, programs, prog_idx=0, pos=0): """ See class documentation. Parameters ---------- programs : vect_programs.VectPrograms prog_idx : int pos : int """ self.programs = programs self.prog_idx = prog_idx self.pos =...
See class documentation. Parameters ---------- programs : vect_programs.VectPrograms prog_idx : int pos : int
__init__
python
WassimTenachi/PhySO
physo/physym/program.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/physym/program.py
MIT
def child(self, i_child = 0): """ See class documentation. Parameters ---------- i_child : int Returns ------- self : program.Cursor """ has_relative = self.programs.tokens.has_children_mask[tuple(self.coords)][0] if not has_rel...
See class documentation. Parameters ---------- i_child : int Returns ------- self : program.Cursor
child
python
WassimTenachi/PhySO
physo/physym/program.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/physym/program.py
MIT
def sibling(self, i_sibling = 0): """ See class documentation. Parameters ---------- i_sibling : int Returns ------- self : program.Cursor """ has_relative = self.programs.tokens.has_siblings_mask[tuple(self.coords)][0] if not has_r...
See class documentation. Parameters ---------- i_sibling : int Returns ------- self : program.Cursor
sibling
python
WassimTenachi/PhySO
physo/physym/program.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/physym/program.py
MIT
def parent(self,): """ See class documentation. Returns ------- self : program.Cursor """ has_relative = self.programs.tokens.has_parent_mask[tuple(self.coords)][0] if not has_relative: err_msg = "Unable to navigate to parent, Token %s at pos =...
See class documentation. Returns ------- self : program.Cursor
parent
python
WassimTenachi/PhySO
physo/physym/program.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/physym/program.py
MIT
def __init__(self, tokens, library, free_consts = None, is_physical = None, candidate_wrapper = None, n_realizations=1): """ Parameters ---------- See attributes help for details. """ # Asserting that tokens make up a full tree representation, no more, no less tot...
Parameters ---------- See attributes help for details.
__init__
python
WassimTenachi/PhySO
physo/physym/program.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/physym/program.py
MIT
def execute_wo_wrapper(self, X, i_realization = 0, n_samples_per_dataset = None): """ Executes program on X. Parameters ---------- X : torch.tensor of shape (n_dim, ?,) of float Values of the input variables of the problem with n_dim = nb of input variables, ? = numbe...
Executes program on X. Parameters ---------- X : torch.tensor of shape (n_dim, ?,) of float Values of the input variables of the problem with n_dim = nb of input variables, ? = number of samples. i_realization : int, optional Index of realization to use f...
execute_wo_wrapper
python
WassimTenachi/PhySO
physo/physym/program.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/physym/program.py
MIT
def optimize_constants(self, X, y_target, y_weights = 1., i_realization = 0, n_samples_per_dataset = None, args_opti = None, freeze_class_free_consts = False): """ Optimizes free constants of program. Parameters ---------- X : torch.tensor of shape (n_dim, ?,) of float ...
Optimizes free constants of program. Parameters ---------- X : torch.tensor of shape (n_dim, ?,) of float Values of the input variables of the problem with n_dim = nb of input variables, ? = number of samples. y_target : torch.tensor of shape (?,) of float ...
optimize_constants
python
WassimTenachi/PhySO
physo/physym/program.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/physym/program.py
MIT
def make_skeleton (self): """ Strips program to its bare minimum light pickable version for eg. parallel execution purposes. """ # Exporting without library so it is lighter to pickle self.library = None self.free_consts.library = None return None
Strips program to its bare minimum light pickable version for eg. parallel execution purposes.
make_skeleton
python
WassimTenachi/PhySO
physo/physym/program.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/physym/program.py
MIT
def get_sympy_local_dicts (self, replace_nan_with = 1.): """ Returns a list of local dicts for each realization of the program to replace free constants by their values in sympy symbolic representation of the program. Parameters ---------- replace_nan_with : float, option...
Returns a list of local dicts for each realization of the program to replace free constants by their values in sympy symbolic representation of the program. Parameters ---------- replace_nan_with : float, optional Value to replace NaNs with in free constants values. ...
get_sympy_local_dicts
python
WassimTenachi/PhySO
physo/physym/program.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/physym/program.py
MIT
def get_infix_sympy (self, do_simplify = False, evaluate_consts = False, replace_nan_with = 1.): """ Returns sympy symbolic representation of a program. Parameters ---------- do_simplify : bool, optional If True performs a symbolic simplification of program. e...
Returns sympy symbolic representation of a program. Parameters ---------- do_simplify : bool, optional If True performs a symbolic simplification of program. evaluate_consts : bool, optional If True replaces free constants by their values in the sympy sym...
get_infix_sympy
python
WassimTenachi/PhySO
physo/physym/program.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/physym/program.py
MIT
def get_infix_pretty (self, do_simplify = False): """ Returns a printable ASCII sympy.pretty representation of a program. Parameters ---------- do_simplify : bool If True performs a symbolic simplification of program. Returns ------- program_pr...
Returns a printable ASCII sympy.pretty representation of a program. Parameters ---------- do_simplify : bool If True performs a symbolic simplification of program. Returns ------- program_pretty_str : str
get_infix_pretty
python
WassimTenachi/PhySO
physo/physym/program.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/physym/program.py
MIT
def get_infix_latex (self,replace_dummy_symbol = True, new_dummy_symbol = "?", do_simplify = True): """ Returns an str latex representation of a program. Parameters ---------- replace_dummy_symbol : bool If True, dummy symbol is replaced by new_dummy_symbol. n...
Returns an str latex representation of a program. Parameters ---------- replace_dummy_symbol : bool If True, dummy symbol is replaced by new_dummy_symbol. new_dummy_symbol : str or None Replaces dummy symbol if replace_dummy_symbol is True. do_sim...
get_infix_latex
python
WassimTenachi/PhySO
physo/physym/program.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/physym/program.py
MIT
def get_infix_fig (self, replace_dummy_symbol = True, new_dummy_symbol = "?", do_simplify = True, show_superparent_at_beginning = True, text_size = 16, text_pos = (0.0, 0.5), ...
Returns pyplot (figure, axis) containing analytic symbolic function program. Parameters ---------- replace_dummy_symbol : bool If True, dummy symbol is replaced by new_dummy_symbol. new_dummy_symbol : str or None Replaces dummy symbol if replace_dummy_sym...
get_infix_fig
python
WassimTenachi/PhySO
physo/physym/program.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/physym/program.py
MIT
def get_infix_image(self, replace_dummy_symbol = True, new_dummy_symbol = "?", do_simplify = True, text_size = 16, text_pos = (0.0, 0.5), figsize = (8, 2), ...
Returns image containing analytic symbolic function program. Parameters ---------- replace_dummy_symbol : bool If True, dummy symbol is replaced by new_dummy_symbol. new_dummy_symbol : str or None Replaces dummy symbol if replace_dummy_symbol is True. ...
get_infix_image
python
WassimTenachi/PhySO
physo/physym/program.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/physym/program.py
MIT
def show_infix(self, replace_dummy_symbol = True, new_dummy_symbol = "?", do_simplify = False, text_size=24, text_pos=(0.0, 0.5), figsize=(10, 1), ): """ Shows pyplot (fig...
Shows pyplot (figure, axis) containing analytic symbolic function program. Parameters ---------- replace_dummy_symbol : bool If True, dummy symbol is replaced by new_dummy_symbol. new_dummy_symbol : str or None Replaces dummy symbol if replace_dummy_symbo...
show_infix
python
WassimTenachi/PhySO
physo/physym/program.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/physym/program.py
MIT
def SquashedNRMSE (y_target, y_pred, y_weights = 1.): """ Squashed NRMSE reward. Parameters ---------- y_target : torch.tensor of shape (?,) of float Target output data. y_pred : torch.tensor of shape (?,) of float Predicted data. y_weights : torch.tensor of shape (?,) of f...
Squashed NRMSE reward. Parameters ---------- y_target : torch.tensor of shape (?,) of float Target output data. y_pred : torch.tensor of shape (?,) of float Predicted data. y_weights : torch.tensor of shape (?,) of float, optional Weights for each data point. By defaul...
SquashedNRMSE
python
WassimTenachi/PhySO
physo/physym/reward.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/physym/reward.py
MIT
def RewardsComputer(programs, X, y_target, n_samples_per_dataset, y_weights = 1., free_const_opti_args = None, reward_function = SquashedNRMSE, zero_out_unphysical = False, ...
Computes rewards of programs on X data accordingly with target y_target and reward reward_function using torch for acceleration. Parameters ---------- programs : Program.VectProgram Programs contained in batch to evaluate. X : torch.tensor of shape (n_dim, ?,) of float Values of...
RewardsComputer
python
WassimTenachi/PhySO
physo/physym/reward.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/physym/reward.py
MIT
def make_RewardsComputer(reward_function = SquashedNRMSE, zero_out_unphysical = False, zero_out_duplicates = False, keep_lowest_complexity_duplicate = False, # Parallel related parallel_mode ...
Helper function to make custom reward computing function. Parameters ---------- reward_function : callable Function that taking y_target (torch.tensor of shape (?,) of float), y_pred (torch.tensor of shape (?,) of float) and optionally y_weights (torch.tensor of shape (?,) of float, o...
make_RewardsComputer
python
WassimTenachi/PhySO
physo/physym/reward.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/physym/reward.py
MIT
def __init__(self, # ---- Token representation ---- name, sympy_repr, # ---- Token main properties ---- arity, complexity = DEFAULT_COMPLEXITY, var_type = 0, # Function specific ...
Note: __init__ accepts None for some parameters for ease of use which are then converted to the right value and type as attributes. Parameters ---------- name : str A short name for the token (eg. 'add' for addition). sympy_repr : str Sympy repres...
__init__
python
WassimTenachi/PhySO
physo/physym/token.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/physym/token.py
MIT
def __init__(self, shape, invalid_token_idx): """ Parameters ---------- shape : (int, int) Shape of the matrix. invalid_token_idx : int Index of the invalid token in the library of tokens. """ # -------------------------------------------...
Parameters ---------- shape : (int, int) Shape of the matrix. invalid_token_idx : int Index of the invalid token in the library of tokens.
__init__
python
WassimTenachi/PhySO
physo/physym/token.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/physym/token.py
MIT
def retrieve_complexity(complexity_dict, curr_name): """ Helper function to safely retrieve complexity of token named curr_name from a dictionary of complexities (complexity_dict). Parameters ---------- complexity_dict : dict of {str : float} or None If dictionary is None or empty, retur...
Helper function to safely retrieve complexity of token named curr_name from a dictionary of complexities (complexity_dict). Parameters ---------- complexity_dict : dict of {str : float} or None If dictionary is None or empty, returns token.DEFAULT_COMPLEXITY. curr_name : str If ...
retrieve_complexity
python
WassimTenachi/PhySO
physo/physym/tokenize.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/physym/tokenize.py
MIT
def retrieve_init_val (init_val_dict, curr_name): """ Helper function to safely retrieve value of token named curr_name from a dictionary of initial values. (init_val_dict). Parameters ---------- init_val_dict : dict of {str : float or array_like of floats} or None If dictionary is None ...
Helper function to safely retrieve value of token named curr_name from a dictionary of initial values. (init_val_dict). Parameters ---------- init_val_dict : dict of {str : float or array_like of floats} or None If dictionary is None or empty, returns token.DEFAULT_FREE_CONST_INIT_VAL. ...
retrieve_init_val
python
WassimTenachi/PhySO
physo/physym/tokenize.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/physym/tokenize.py
MIT
def retrieve_units(units_dict, curr_name): """ Helper function to safely retrieve units of token named curr_name from a dictionary of units (units_dict). Parameters ---------- units_dict : dict of {str : array_like} or None If dictionary is None or empty, returned curr_is_constraining_phy_un...
Helper function to safely retrieve units of token named curr_name from a dictionary of units (units_dict). Parameters ---------- units_dict : dict of {str : array_like} or None If dictionary is None or empty, returned curr_is_constraining_phy_units is False and curr_phy_units is None. (...
retrieve_units
python
WassimTenachi/PhySO
physo/physym/tokenize.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/physym/tokenize.py
MIT
def make_tokens( # operations op_names = "all", use_protected_ops = False, # input variables input_var_ids = None, input_var_units = None, input_var_complexity = None, ...
Makes a list of tokens for a run based on a list of operation names, input variables ids and constants values. Parameters ---------- -------- Operations (eg. add, mul, cos, exp) -------- op_names : list of str or str, optional List of names of operations that will b...
make_tokens
python
WassimTenachi/PhySO
physo/physym/tokenize.py
https://github.com/WassimTenachi/PhySO/blob/master/physo/physym/tokenize.py
MIT