GClasses::GNormalize Class Reference
Detailed Description
This transform scales and shifts continuous values to make them fall within a specified range.
#include <GTransform.h>
Inheritance diagram for GClasses::GNormalize:
Public Member Functions | |
| GNormalize (double min=0.0, double max=1.0) | |
| min and max specify the target range. (The input domain is determined automatically when train is called.) More... | |
| GNormalize (const GDomNode *pNode) | |
| Load from a DOM. More... | |
| virtual | ~GNormalize () |
| virtual GDomNode * | serialize (GDom *pDoc) const |
| Marshal this object into a DOM, which can then be converted to a variety of serial formats. More... | |
| void | setMinsAndRanges (const GRelation &pRel, const GVec &mins, const GVec &ranges) |
| Specify the input min and range values for each attribute. More... | |
| virtual void | transform (const GVec &in, GVec &out) |
| See the comment for GIncrementalTransform::transform. More... | |
| virtual void | untransform (const GVec &in, GVec &out) |
| See the comment for GIncrementalTransform::untransform. More... | |
| virtual void | untransformToDistribution (const GVec &in, GPrediction *pOut) |
| See the comment for GIncrementalTransform::untransformToDistribution. More... | |
 Public Member Functions inherited from GClasses::GIncrementalTransform | |
| GIncrementalTransform () | |
| GIncrementalTransform (const GDomNode *pNode) | |
| virtual | ~GIncrementalTransform () |
| const GRelation & | after () const |
| Returns a relation object describing the data after it is transformed. More... | |
| const GRelation & | before () const |
| Returns a relation object describing the data before it is transformed. More... | |
| GVec & | innerBuf () |
| Returns a buffer of sufficient size to store an inner (transformed) vector. The caller should not to delete the buffer. The same buffer will be returned each time. More... | |
| virtual GMatrix * | reduce (const GMatrix &in) |
| This calls train, then calls transformBatch, and returns the result. More... | |
| void | setAfter (GRelation *pRel) |
| Sets the after relation. Takes ownership of pRel. More... | |
| void | setBefore (GRelation *pRel) |
| Sets the before relation. Takes ownership of pRel. More... | |
| void | train (const GMatrix &data) |
| Trains the transform on the data in pData. (This method may be a no-op for transformations that always behave in the same manner.) More... | |
| void | train (const GRelation &pRelation) |
| "Trains" the transform without any data. More... | |
| virtual GMatrix * | transformBatch (const GMatrix &in) |
| This assumes that train has already been called, and transforms all the rows in in returning the resulting matrix. The caller is responsible for deleting the new matrix. More... | |
| virtual std::unique_ptr< GMatrix > | untransformBatch (const GMatrix &in) |
| This assumes train was previously called, and untransforms all the rows in pIn and returns the results. More... | |
| Public Member Functions inherited from GClasses::GTransform | |
| GTransform () | |
| GTransform (const GDomNode *pNode) | |
| virtual | ~GTransform () |
Protected Member Functions | |
| virtual GRelation * | trainInner (const GMatrix &data) |
| See the comment for GIncrementalTransform::train. More... | |
| virtual GRelation * | trainInner (const GRelation &relation) |
| Throws an exception (because this transform cannot be trained without data) More... | |
| Protected Member Functions inherited from GClasses::GIncrementalTransform | |
| virtual GDomNode * | baseDomNode (GDom *pDoc, const char *szClassName) const |
| Child classes should use this in their implementation of serialize. More... | |
Protected Attributes | |
| double | m_max |
| double | m_min |
| GVec | m_mins |
| GVec | m_ranges |
Additional Inherited Members | |
| Static Public Member Functions inherited from GClasses::GIncrementalTransform | |
| static void | test () |
| Performs unit tests for this class. Throws an exception if there is a failure. More... | |
Constructor & Destructor Documentation
| GClasses::GNormalize::GNormalize | ( | double | min = 0.0, |
| double | max = 1.0 |
||
| ) |
min and max specify the target range. (The input domain is determined automatically when train is called.)
| GClasses::GNormalize::GNormalize | ( | const GDomNode * | pNode | ) |
Load from a DOM.
|
virtual |
Member Function Documentation
Marshal this object into a DOM, which can then be converted to a variety of serial formats.
Implements GClasses::GIncrementalTransform.
| void GClasses::GNormalize::setMinsAndRanges | ( | const GRelation & | pRel, |
| const GVec & | mins, | ||
| const GVec & | ranges | ||
| ) |
Specify the input min and range values for each attribute.
See the comment for GIncrementalTransform::train.
Implements GClasses::GIncrementalTransform.
Throws an exception (because this transform cannot be trained without data)
Implements GClasses::GIncrementalTransform.
See the comment for GIncrementalTransform::transform.
Implements GClasses::GIncrementalTransform.
See the comment for GIncrementalTransform::untransform.
Implements GClasses::GIncrementalTransform.
|
virtual |
See the comment for GIncrementalTransform::untransformToDistribution.
Implements GClasses::GIncrementalTransform.
Member Data Documentation
|
protected |
|
protected |
|
protected |
|
protected |
