error line:- Index in position 2 exceeds array bounds. Index must not exceed 4.

%svm
train=DF;
xdata =train;
TrainingSet=double(xdata);
GroupTrain=[1;1;1;1;1;1;1;1;1;1;2;2;3;3]
TestSet=double(QF);
u=unique(GroupTrain);
numClasses=length(u);
result = zeros(length(TestSet(:,1)),1);
%build models
for k=1:numClasses
    %Vectorized statement that binarizes Group
    %where 1 is the current class and 0 is all other classes
    G1vAll=(GroupTrain==u(k));
    G1vAll=reshape(G1vAll(1,14))
    mdl(k) = fitcsvm('G1vAll','result');
end
%classify test cases
for j=1:size(TestSet,1)
    for k=1:numClasses
        if(classificationsvm(mdl(k),TestSet(j,:))) 
            break;
        end
    end
    result(j) = k;
end
out=result
%

[saiprathyush reddy]

 mdl(k) = fitcsvm('G1vAll','result');

[saiprathyush reddy]

this is the point where the code gets stuck and the error occurs. hopefully there's all the information to help solve the confusion.

Answer 1

[Sandeep]

Hi Saiprathyush reddy,

It is great to know that you are working with the Support Vector Machine classifier.

The error occurs in the line mdl(k) = fitcsvm('G1vAll','result'); because you are passing the strings 'G1vAll' and 'result' as arguments to the 'fitcsvm' function. However, the 'fitcsvm' function expects the actual data as input, not the string representation of variable names.

To fix this error, you should pass the actual data to the 'fitcsvm' function.

Hope you find it helpful.