Feature selection with KNN

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alia
alia on 9 Mar 2015
Edited: Adam on 9 Mar 2015
Hello All,
I am trying to use feature selection with KNN classifier
fun1 = @(XT,yT,Xt,yt)... (sum((yt ~= knnclassify(Xt,XT,yT)))); [fs,history] = sequentialfs(fun1,XT,yT,'cv',c1,'options',opts,'direction','forward')
But, I am getting an error which says knn classify is not a valid function. Can you suggest any solution for that?
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Adam
Adam on 9 Mar 2015
Edited: Adam on 9 Mar 2015
Is it on your path? It seems to need the Bioinformatics Toolbox, though you haven't added this to the Products list so I don't know if you have this toolbox or not?
Type:
which knnclassify
to see if it is on your path.

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