| | from .bit_generator import BitGenerator |
| | from .mtrand import RandomState |
| | from ._philox import Philox |
| | from ._pcg64 import PCG64, PCG64DXSM |
| | from ._sfc64 import SFC64 |
| |
|
| | from ._generator import Generator |
| | from ._mt19937 import MT19937 |
| |
|
| | BitGenerators = {'MT19937': MT19937, |
| | 'PCG64': PCG64, |
| | 'PCG64DXSM': PCG64DXSM, |
| | 'Philox': Philox, |
| | 'SFC64': SFC64, |
| | } |
| |
|
| |
|
| | def __bit_generator_ctor(bit_generator: str | type[BitGenerator] = 'MT19937'): |
| | """ |
| | Pickling helper function that returns a bit generator object |
| | |
| | Parameters |
| | ---------- |
| | bit_generator : type[BitGenerator] or str |
| | BitGenerator class or string containing the name of the BitGenerator |
| | |
| | Returns |
| | ------- |
| | BitGenerator |
| | BitGenerator instance |
| | """ |
| | if isinstance(bit_generator, type): |
| | bit_gen_class = bit_generator |
| | elif bit_generator in BitGenerators: |
| | bit_gen_class = BitGenerators[bit_generator] |
| | else: |
| | raise ValueError( |
| | str(bit_generator) + ' is not a known BitGenerator module.' |
| | ) |
| |
|
| | return bit_gen_class() |
| |
|
| |
|
| | def __generator_ctor(bit_generator_name="MT19937", |
| | bit_generator_ctor=__bit_generator_ctor): |
| | """ |
| | Pickling helper function that returns a Generator object |
| | |
| | Parameters |
| | ---------- |
| | bit_generator_name : str or BitGenerator |
| | String containing the core BitGenerator's name or a |
| | BitGenerator instance |
| | bit_generator_ctor : callable, optional |
| | Callable function that takes bit_generator_name as its only argument |
| | and returns an instantized bit generator. |
| | |
| | Returns |
| | ------- |
| | rg : Generator |
| | Generator using the named core BitGenerator |
| | """ |
| | if isinstance(bit_generator_name, BitGenerator): |
| | return Generator(bit_generator_name) |
| | |
| | return Generator(bit_generator_ctor(bit_generator_name)) |
| |
|
| |
|
| | def __randomstate_ctor(bit_generator_name="MT19937", |
| | bit_generator_ctor=__bit_generator_ctor): |
| | """ |
| | Pickling helper function that returns a legacy RandomState-like object |
| | |
| | Parameters |
| | ---------- |
| | bit_generator_name : str |
| | String containing the core BitGenerator's name |
| | bit_generator_ctor : callable, optional |
| | Callable function that takes bit_generator_name as its only argument |
| | and returns an instantized bit generator. |
| | |
| | Returns |
| | ------- |
| | rs : RandomState |
| | Legacy RandomState using the named core BitGenerator |
| | """ |
| | if isinstance(bit_generator_name, BitGenerator): |
| | return RandomState(bit_generator_name) |
| | return RandomState(bit_generator_ctor(bit_generator_name)) |
| |
|
