CPruneVarSubMean Class Reference
Detailed Description
Preprocessor PruneVarSubMean will substract the mean and remove features that have zero variance. It will optionally normalize standard deviation of features to 1 (by dividing by standard deviation of the feature)Definition at line 26 of file PruneVarSubMean.h.
Public Member Functions | |
| CPruneVarSubMean (bool divide=true) | |
| virtual | ~CPruneVarSubMean () |
| virtual bool | init (CFeatures *f) |
| initialize preprocessor from features | |
| virtual bool | load_init_data (FILE *src) |
| initialize preprocessor from file | |
| virtual bool | save_init_data (FILE *dst) |
| save init-data (like transforamtion matrices etc) to file | |
| virtual void | cleanup () |
| cleanup | |
| virtual float64_t * | apply_to_feature_matrix (CFeatures *f) |
| virtual float64_t * | apply_to_feature_vector (float64_t *f, int32_t &len) |
Protected Attributes | |
| int32_t * | idx |
| float64_t * | mean |
| float64_t * | std |
| int32_t | num_idx |
| bool | divide_by_std |
| bool | initialized |
| true when already initialized | |
Constructor & Destructor Documentation
| CPruneVarSubMean::CPruneVarSubMean | ( | bool | divide = true |
) |
constructor
- Parameters:
-
divide if division shall be made
Definition at line 19 of file PruneVarSubMean.cpp.
| CPruneVarSubMean::~CPruneVarSubMean | ( | ) | [virtual] |
Definition at line 25 of file PruneVarSubMean.cpp.
Member Function Documentation
| bool CPruneVarSubMean::init | ( | CFeatures * | f | ) | [virtual] |
initialize preprocessor from features
Implements CPreProc.
Definition at line 31 of file PruneVarSubMean.cpp.
| bool CPruneVarSubMean::load_init_data | ( | FILE * | src | ) | [virtual] |
initialize preprocessor from file
Implements CPreProc.
Definition at line 207 of file PruneVarSubMean.cpp.
| bool CPruneVarSubMean::save_init_data | ( | FILE * | dst | ) | [virtual] |
save init-data (like transforamtion matrices etc) to file
Implements CPreProc.
Definition at line 233 of file PruneVarSubMean.cpp.
| void CPruneVarSubMean::cleanup | ( | ) | [virtual] |
cleanup
clean up allocated memory
Implements CPreProc.
Definition at line 127 of file PruneVarSubMean.cpp.
apply preproc on feature matrix result in feature matrix return pointer to feature_matrix, i.e. f->get_feature_matrix();
apply preproc on feature matrix result in feature matrix return pointer to feature_matrix, i.e. f->get_feature_matrix();
Implements CSimplePreProc< ST >.
Definition at line 140 of file PruneVarSubMean.cpp.
apply preproc on single feature vector result in feature matrix
apply preproc on single feature vector result in feature matrix
Definition at line 176 of file PruneVarSubMean.cpp.
Member Data Documentation
int32_t* CPruneVarSubMean::idx [protected] |
idx
Definition at line 58 of file PruneVarSubMean.h.
float64_t* CPruneVarSubMean::mean [protected] |
mean
Definition at line 60 of file PruneVarSubMean.h.
float64_t* CPruneVarSubMean::std [protected] |
std
Definition at line 62 of file PruneVarSubMean.h.
int32_t CPruneVarSubMean::num_idx [protected] |
num idx
Definition at line 64 of file PruneVarSubMean.h.
bool CPruneVarSubMean::divide_by_std [protected] |
divide by std
Definition at line 66 of file PruneVarSubMean.h.
bool CPruneVarSubMean::initialized [protected] |
The documentation for this class was generated from the following files: