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MRS
1.0
A C++ Class Library for Statistical Set Processing
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MRS
1.0
A C++ Class Library for Statistical Set Processing
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Class comparing change in EMP under COPERR from splitting 2 nodes. More...
Inheritance diagram for subpavings::CompEMPSumChangeCOPERR: Collaboration diagram for subpavings::CompEMPSumChangeCOPERR:Class comparing change in EMP under COPERR from splitting 2 nodes.
Under COPERR, EMP is -1/n^2 x sum over leaves of (counts in leaf squared / volume of leaf) where n is the total number of data points in the histogram
For two leaf nodes we are comparing change in the sum over leaves of (counts in leaf squared over volume of leaf) which would result if each node were to be the one to be split.
The smaller (more negative) the value returned by getSplitChangeEMPCOPERR(), the more a node will reduce or least increase the overall EMP by being split, so it should be higher, ie more to right, in the ordering.
