In order to train SVM for multiclass classification using MATLAB, consider using 'ClassificationECOC' model which are models for multiclass classification using the 'fitcecoc' function to train the SVM model.
Here is an example:
load fisheriris
X = meas;
Y = species;
Mdl = fitcecoc(X,Y); % We obtain a multiclass classification SVM model
Refer to the following tutorial video on SVM and how to use them using MATLAB: https://www.mathworks.com/videos/tutorial-on-support-vector-machines-and-using-them-in-matlab-1617691223439.html
Refer to the following MathWorks documentations to know more:
'ClassificationECOC': https://www.mathworks.com/help/releases/R2021a/stats/classificationecoc.html
Thanks.
