old PCA function documentation

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Mattia D'Andola
Mattia D'Andola 2021-6-30
评论： Mattia D'Andola 2021-6-30
Hi,
I am updating and incorporating in my analysis an old code written by someone else. To perform PCA they use the old function 'princomp'. Is there a place where I can find the documentation of such function?
In particular, does the option 'econ' called as below correspond to the modern 'Economy'=True?
thanks!
[..] = princomp(X,'econ')

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Walter Roberson
Walter Roberson 2021-6-30
Official archived documentation (which will disappear in about a year):
https://www.mathworks.com/help/releases/R2017b/stats/princomp.html?searchHighlight=princomp
And here is a post saying that princomp() just called pca() with some default options.
https://www.mathworks.com/matlabcentral/answers/77820-what-is-the-difference-between-pca-x-and-princomp-x-matlab-commands

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