How to create a model using the mdl=LinearModel.fit(X,y)

I want to use the mdl=LinearModel.fit(X,y) to create a linear Model in Matlab 2011a but I am getting the following error message:

??? Undefined variable "LinearModel" or class "LinearModel.fit".

I have been told that the code can be used in Matlab 2011a however another contributor said the code can only be used for Matlab 2012a.

Thank you

Answer 1

[Walter Roberson]

http://www.mathworks.com/matlabcentral/newsreader/view_thread/323406

Points to the exact release notes that confirm that this was new in R2012a