I'm trying to use SVMTRAIN as

svmStruct=svmtrain(TrainingSample,TrainingLBL,'showplot',true,'kernel_function','rbf','rbf_sigma',0.1);

However, when I run it, there is no plot displayed. Instead, a list of 'help' instructions on using SVMTRAIN is shown?

What am I doing wrong here?

Edit: I tried using

which -all svmtrain

It shows three types of svmtrains. Two of them are shadowed. How do I know which of them to use?

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