Normalize function of matlab

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AMIR KHAN
AMIR KHAN 2021-9-4
评论： AMIR KHAN 2021-9-4
I am trying to normalize my data and using matlab's normalize() function. I want the normalized data, center and scalar values as the output. But when I am simulating it is saying "too many output arguments." But I have seen from the page https://uk.mathworks.com/help/matlab/ref/double.normalize.html and using the same way. Kindly, see the screenshot.
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AMIR KHAN
AMIR KHAN 2021-9-4
Thanks a lot. I want to normalize the test set from same mean and std as that of train set. Is there any function for that?

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Walter Roberson
Walter Roberson 2021-9-4
In your release, only the one-output form of normalize() was available.
https://www.mathworks.com/help/releases/R2019b/matlab/ref/double.normalize.html?searchHighlight=normalize&s_tid=doc_srchtitle
The three-output form is new as of R2021a.
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Walter Roberson
Walter Roberson 2021-9-4
c = mean(Xs);
s = std(Xs);
Xs = normalize((Xs-c) ./ s);
and then use the same s and c for all other datasets you want to center and scale the same way.

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