MATLAB: Using fitlm for multiple linear model: Does this function automatically standardise the variables

Question

Hi!

I just read about standardisation and that it is recommended to standardise variables in a multiple linear model. My question is now whether fitlm has done this automatically or if i need to do it?

Thank you for your help!

Answer 1

No fitlm doesn't not standardize your data. You will have to do this prior to calling fitlm:

http://www.mathworks.com/help/stats/zscore.html