I was trying to use fitcsvm to train and classify my data. However, I notice - correct me if I'm wrong - that fitcsvm could only be used with 2 classes (groups).
My data have more than 2 classes. Is there away to do classify them in matlab?
I did some googling and I read that some recommend to use fitcecoc, while others recommend to use out of the box code multisvm
Morover, other recommend to use discriminant analysis
Please, advise on best approach to go.
you are correct, fitcsvm is for one or two classes, you may use svmtrain which is matlab's svm classifier for more then two classes, also there is a famous toolbox named libsvm, if you google it would be found easily.
https://github.com/cjlin1/libsvm
Recently I saw some new method for multiply svm classifer named DSVM, it's nice new method,this would be found in matlab's files exchange.
http://www.mathworks.com/matlabcentral/fileexchange/48632-multiclass-svm-classifier
good luck