Abstract base class for all splitting types. Takes a CLabels instance and generates a desired number of subsets which are being accessed by their indices via the method generate_subset_indices(...).
When being extended, the abstract method build_subsets() has to be implemented AND to be called in the constructor of sub-classes. Implementations have to fill the DynArray<index_t> elements in the (inherited) m_subset_indices variable. Note that these elements are already created by the constructor of this class - they just have to be filled. Every element represents one index subset.
Definition at line 34 of file SplittingStrategy.h.
Public Member Functions | |
CSplittingStrategy () | |
CSplittingStrategy (CLabels *labels, index_t num_subsets) | |
virtual | ~CSplittingStrategy () |
SGVector< index_t > | generate_subset_indices (index_t subset_idx) |
SGVector< index_t > | generate_subset_inverse (index_t subset_idx) |
index_t | get_num_subsets () const |
virtual const char * | get_name () const |
Protected Member Functions | |
virtual void | build_subsets ()=0 |
Protected Attributes | |
CLabels * | m_labels |
CDynamicObjectArray < CDynamicArray< index_t > > * | m_subset_indices |
constructor
Definition at line 16 of file SplittingStrategy.cpp.
CSplittingStrategy | ( | CLabels * | labels, | |
index_t | num_subsets | |||
) |
constructor
labels | labels to be (possibly) used for splitting | |
num_subsets | desired number of subsets, the labels are split into |
~CSplittingStrategy | ( | ) | [virtual] |
destructor
Definition at line 81 of file SplittingStrategy.cpp.
virtual void build_subsets | ( | ) | [protected, pure virtual] |
Abstract method. Has to fill the elements of the m_subset_indices variable with concrete indices. Note that CDynamicArray<index_t> instances for every subset are created in the constructor of this class - they just have to be filled.
Implemented in CStratifiedCrossValidationSplitting.
generates a newly created SGVector<index_t> with indices of the subset with the desired index
subset_idx | subset index of the to be generated vector indices |
Definition at line 87 of file SplittingStrategy.cpp.
generates a newly created SGVector<index_t> with inverse indices of the subset with the desired index. inverse here means all other indices.
subset_idx | subset index of the to be generated inverse indices |
Definition at line 104 of file SplittingStrategy.cpp.
virtual const char* get_name | ( | void | ) | const [virtual] |
Implements CSGObject.
Reimplemented in CStratifiedCrossValidationSplitting.
Definition at line 74 of file SplittingStrategy.h.
index_t get_num_subsets | ( | ) | const |
Definition at line 69 of file SplittingStrategy.h.
labels
Definition at line 90 of file SplittingStrategy.h.
CDynamicObjectArray<CDynamicArray<index_t> >* m_subset_indices [protected] |
subset indices
Definition at line 92 of file SplittingStrategy.h.