Home > src > findRedundancies.m

findRedundancies

PURPOSE

finds redundant variables for easy removal

SYNOPSIS

function unqIdx = findRedundancies( featVect )

DESCRIPTION

 finds redundant variables for easy removal
 Feb 25, 2012
 Notes: this funciton checks for redundant variables and returns the index
 of the redundant ones so they can be removed

  inputs:
     featVect:  (numDim x numSample)  matrix
     
  outputs:
     unqIdx: unique indices

CROSS-REFERENCE INFORMATION

This function calls:

This function is called by:

sortVariablesANOVA anova ranking of variables
sortVariablesLR L1 penalized logistic regression ranking of variables
sortVariablesNB Naive bayes ranking of variables (using CV accuracy criterion)

SOURCE CODE

0001 % finds redundant variables for easy removal
0002 % Feb 25, 2012
0003 % Notes: this funciton checks for redundant variables and returns the index
0004 % of the redundant ones so they can be removed
0005 %
0006 %  inputs:
0007 %     featVect:  (numDim x numSample)  matrix
0008 %
0009 %  outputs:
0010 %     unqIdx: unique indices
0011 %
0012 
0013 function unqIdx = findRedundancies( featVect  )
0014 
0015 [b  unqIdx ] = unique( featVect, 'first', 'rows');
0016 unqIdx = sort( unqIdx, 'ascend');