Hello everyone, I am using libsvm in matlab for forecasting. In my program following two functions are not working as given below-

DATA= scaleSVM(DATA,DATA,DATA, 0, 1); %scaling data in [0,1]

[learn, val] = k_FoldCV_SPLIT(data, param.nfold, i)

Kindly guide me that it is a function of libsvm or user defined. If it is user defined then kindly help me for developing code for this function.