| ################################################################################ |
| # Includes |
| from ..utils._typedefs cimport intp_t |
|
|
| cdef extern from "_svm_cython_blas_helpers.h": |
| ctypedef double (*dot_func)(int, const double*, int, const double*, int) |
| cdef struct BlasFunctions: |
| dot_func dot |
|
|
|
|
| cdef extern from "svm.h": |
| cdef struct svm_node |
| cdef struct svm_model |
| cdef struct svm_parameter: |
| int svm_type |
| int kernel_type |
| int degree # for poly |
| double gamma # for poly/rbf/sigmoid |
| double coef0 # for poly/sigmoid |
|
|
| # these are for training only |
| double cache_size # in MB |
| double eps # stopping criteria |
| double C # for C_SVC, EPSILON_SVR and NU_SVR |
| int nr_weight # for C_SVC |
| int *weight_label # for C_SVC |
| double* weight # for C_SVC |
| double nu # for NU_SVC, ONE_CLASS, and NU_SVR |
| double p # for EPSILON_SVR |
| int shrinking # use the shrinking heuristics |
| int probability # do probability estimates |
| int max_iter # ceiling on Solver runtime |
| int random_seed # seed for random generator in probability estimation |
|
|
| cdef struct svm_problem: |
| int l |
| double *y |
| svm_node *x |
| double *W # instance weights |
|
|
| char *svm_check_parameter(svm_problem *, svm_parameter *) |
| svm_model *svm_train(svm_problem *, svm_parameter *, int *, BlasFunctions *) nogil |
| void svm_free_and_destroy_model(svm_model** model_ptr_ptr) |
| void svm_cross_validation(svm_problem *, svm_parameter *, int nr_fold, double *target, BlasFunctions *) nogil |
|
|
|
|
| cdef extern from "libsvm_helper.c": |
| # this file contains methods for accessing libsvm 'hidden' fields |
| svm_node **dense_to_sparse (char *, intp_t *) |
| void set_parameter (svm_parameter *, int , int , int , double, double , |
| double , double , double , double, |
| double, int, int, int, char *, char *, int, |
| int) |
| void set_problem (svm_problem *, char *, char *, char *, intp_t *, int) |
|
|
| svm_model *set_model (svm_parameter *, int, char *, intp_t *, |
| char *, intp_t *, intp_t *, char *, |
| char *, char *, char *, char *) |
|
|
| void copy_sv_coef (char *, svm_model *) |
| void copy_n_iter (char *, svm_model *) |
| void copy_intercept (char *, svm_model *, intp_t *) |
| void copy_SV (char *, svm_model *, intp_t *) |
| int copy_support (char *data, svm_model *model) |
| int copy_predict (char *, svm_model *, intp_t *, char *, BlasFunctions *) nogil |
| int copy_predict_proba (char *, svm_model *, intp_t *, char *, BlasFunctions *) nogil |
| int copy_predict_values(char *, svm_model *, intp_t *, char *, int, BlasFunctions *) nogil |
| void copy_nSV (char *, svm_model *) |
| void copy_probA (char *, svm_model *, intp_t *) |
| void copy_probB (char *, svm_model *, intp_t *) |
| intp_t get_l (svm_model *) |
| intp_t get_nr (svm_model *) |
| int free_problem (svm_problem *) |
| int free_model (svm_model *) |
| void set_verbosity(int) |
|
|
