Mercurial > hg > sfx-subgrouping

annotate misc/SFXFeatureSelection.m @ 37:d9a9a6b93026 tip

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Add README
author DaveM
date Sat, 01 Apr 2017 17:03:14 +0100
parents b177d57ac0bd
children
rev   line source
DaveM@2 1 tic
DaveM@2 2 rng(1945,'twister')
DaveM@2 3 options = statset('UseParallel', true);
DaveM@8 4 b = TreeBagger(50, data, labels,'OOBVarImp','On', 'SampleWithReplacement', 'Off', 'FBoot', 0.632, 'Options', options);
DaveM@8 5 % b = TreeBagger(500, DataTrain63, LabelsTrain,'OOBVarImp','On', 'SampleWithReplacement', 'Off', 'InBagFraction', 0.632, 'Options', options);
DaveM@2 6 toc
DaveM@2 7 figure
DaveM@2 8 plot(oobError(b))
DaveM@2 9 oobErr = oobError(b);
DaveM@2 10 xlabel('Number of Grown Trees')
DaveM@2 11 ylabel('Out-of-Bag Classification Error')
DaveM@2 12 figure
DaveM@2 13 bar(b.OOBPermutedVarDeltaError)
DaveM@2 14 xlabel 'Feature Number'
DaveM@2 15 ylabel 'Out-of-Bag Feature Importance'
DaveM@2 16 FI = b.OOBPermutedVarDeltaError;
DaveM@2 17 r = corrcoef(NormXtrain);
DaveM@2 18 figure
DaveM@2 19 imagesc(abs(r))
DaveM@2 20 NormXtrainOld = NormXtrain;
DaveM@2 21 idxvarOld = idxvar;
DaveM@2 22 FeatureNamesOld = FeatureNames;
DaveM@2 23 oobErrOld = oobErr;