Does MATLAB normalizes the input by default when calling 'fitrnet'?

I am using "fitrnet" to construct a neural network model. However, I can not find any documentation about data normalization (mapping data between -1 and 1 or 0 and 1) in fitrnet.

Answer 1

[Walter Roberson]

No. It only does that if "Standardize",true is requested. Mathworks recommends using standardize

[ali eftekhar]

Here there is a difference between normalization (mapping data between -1 and 1 or 0 and 1) and Standardization using the mean and the standard deviation of each predictor.

I want to know if the MATLAB normalize (mapping data between -1 and 1 or 0 and 1) the input or not?

[Walter Roberson]

You are right, the Standardize option does appear to have to do with mean and variance.

When I looked at the code, I did not see any evidence of normalization -- but I might have overlooked it (might perhaps have clicked Step Out too early in the debugger at some point.)