This common base class provides code that is useful for writing pivot split strategies. More...
Public Member Functions | |
| virtual void | getPivot (Term &pivot, Slice &slice) const |
| Sets pivot to the pivot of a pivot split on slice. More... | |
| virtual void | getPivot (Term &pivot, Slice &slice, const TermGrader &grader) const |
| Sets pivot to the pivot of a pivot split on slice. More... | |
| virtual size_t | getLabelSplitVariable (const Slice &slice) const |
| Returns the variable to perform a label split on. More... | |
| virtual bool | isPivotSplit () const |
| If returns true, only call getPivot. More... | |
| virtual bool | isLabelSplit () const |
| If returns true, only call getLabelSplitVariable. More... | |
 Public Member Functions inherited from SplitStrategy | |
| virtual | ~SplitStrategy () |
| virtual const char * | getName () const =0 |
| Returns the name of the strategy. More... | |
Protected Member Functions | |
| Exponent | getMedianPositiveExponentOf (Slice &slice, size_t var) const |
| size_t | getBestVar (const Slice &slice) const |
| Protected Member Functions inherited from SplitStrategy | |
| SplitStrategy () | |
| SplitStrategy (const SplitStrategy &) | |
| SplitStrategy & | operator= (const SplitStrategy &) |
| bool | operator== (const SplitStrategy &) |
Protected Attributes | |
| Term | coVariableForGetBestVar |
Additional Inherited Members | |
| Static Public Member Functions inherited from SplitStrategy | |
| static auto_ptr< SplitStrategy > | createStrategy (const string &prefix) |
| Returns the strategy whose name has the given prefix. More... | |
Detailed Description
This common base class provides code that is useful for writing pivot split strategies.
Definition at line 37 of file SplitStrategy.cpp.
Member Function Documentation
◆ getBestVar()
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inlineprotected |
Definition at line 78 of file SplitStrategy.cpp.
◆ getLabelSplitVariable()
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inlinevirtual |
Returns the variable to perform a label split on.
This method must only be called if isLabelSplit() returns true.
Implements SplitStrategy.
Reimplemented in MinLabelSplit, VarLabelSplit, and MaxLabelSplit.
Definition at line 48 of file SplitStrategy.cpp.
◆ getMedianPositiveExponentOf()
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inlineprotected |
Definition at line 63 of file SplitStrategy.cpp.
◆ getPivot() [1/2]
Sets pivot to the pivot of a pivot split on slice.
The slice is not changed mathematically, but e.g. the generators may be permuted.
This method must only be called if isPivotSplit() returns true.
Implements SplitStrategy.
Reimplemented in DegreeSplit, MinGenSplit, GcdSplit, IndependencePivotSplit, MaximumSplit, MedianSplit, and MinimumSplit.
Definition at line 39 of file SplitStrategy.cpp.
◆ getPivot() [2/2]
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inlinevirtual |
Sets pivot to the pivot of a pivot split on slice.
Some pivot selection strategies make use of a grading. The slice is not changed mathematically, but e.g. the generators may be permuted.
This method must only be called if isPivotSplit() returns true.
Implements SplitStrategy.
Reimplemented in DegreeSplit.
Definition at line 44 of file SplitStrategy.cpp.
◆ isLabelSplit()
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inlinevirtual |
If returns true, only call getLabelSplitVariable.
Implements SplitStrategy.
Reimplemented in LabelSplit.
Definition at line 58 of file SplitStrategy.cpp.
◆ isPivotSplit()
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inlinevirtual |
If returns true, only call getPivot.
Implements SplitStrategy.
Reimplemented in PivotSplit.
Definition at line 54 of file SplitStrategy.cpp.
Member Data Documentation
◆ coVariableForGetBestVar
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mutableprotected |
Definition at line 77 of file SplitStrategy.cpp.
The documentation for this class was generated from the following file:
