Following is the error in my program

 Index exceeds matrix dimensions.

 Error in threshold (line 13)
        correctMinimum(j) = allMinimum(i);

 Error in knnclassify (line 177)
 [minThreshold,maxThreshold] = threshold(AVM,recognition);

 Error in maintotaldemo (line 76)
 predictlabel = knnclassify(P_test, P_train, train_label,3,'euclidean','nearest');
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 [dIndex,dista]= knnsearch(TRAIN,sample,'distance', distance,'K',K)
 %%calculating FAR and FRR using threshold
 personsNo = 10;
 test=10
 for i=1:personsNo
    originalTest(1,((i-1)*12)+1:((i-1)*12)+12) = i;
 end  
 recognition = (originalTest'==test);
 AVM = dista(2:40,:);
 [minThreshold,maxThreshold] = threshold(AVM,recognition); 
 [FAR,FRR] = ROC(AVM,minThreshold,maxThreshold);
 plot(FAR,FRR);

[KALYAN ACHARJYA]

TRAIN?

[Balaji M. Sontakke]

 train = 80 X 24 
 sample = 40 X 24
 distance=Euclidean
 K=3