Hi,
Please note that the ‘svmtrain’ function was used in order versions on MATLAB and was removed in R2019b, the function ‘fitcsvm’ is now used place of ‘svmtrain’.
Refer to this MATLAB answer here:
To learn more about ‘fitcsvm’ refer to its MATLAB documentation here:
To know more about the ‘KernelScale’ parameter refer this link:
www.mathworks.com/help/stats/fitcsvm.html?searchHighlight=fitcsvm&s_tid=srchtitle_support_results_1_fitcsvm#bt9w6j6_sep_shared-KernelScale[UN3] [UN4] [KS5]
MATLAB used to include both functions for backward compatibility. Users who had existing codebases could use ‘svmtrain’ and could continue to use their code without modification. However, for new projects and to take advantage of improved functionality and performance, ‘fitcsvm’ is the recommended choice.
Hope it helps!
