MATLAB: Undefined function ‘predict’ for input arguments of type ‘classreg.​learning.p​artition.R​egressionP​artitioned​Linear’.

Question

After training model with cross validation:

model{i}=fitrlinear(xtrain',ytrain(i,:)','Crossval','on');

I try to use predict function

predict(model{i},xtest);

This worked fine when i didn't have cross validation flags in the fitrlinear function because the output was linear regression model. I looked on wiki for RegressionPartionedLinear object and its function is also called predict, but matlab giving me "undefined function" error.

How can I use the cross validated model?

Answer 1

What does this say

>> which -all predict

Also if you run the attached program, what does it say?