Re: [R] How to combine to PCAs

From: <bady_at_univ-lyon1.fr>
Date: Thu, 05 Jun 2008 16:21:53 +0200

hi, hi all,

There are several methods to analyse two (e.g. coinertia, procuste) or K tables (e.g. statis, mfa, gpa, etc.) in the packages ade4, FactoMiner, etc. Otherwise analyses on instrumental variables can be an interesting way to explore your dataset (e.g. within/between analyses, etc.)

hope this help

pierre

Selon Stefan Koenig <st.koenig_at_gmx.net>:

> Dear all:
>
> Subjects were measured two times (t1 and t2) on different variables (v1 ...
> vn).
> Between t1 and t2 there was an experimental manipulation. I computed two PCAs
> for time-points t1 and t2.
>
> Is it possible to combine both PCAs in order to get only one set of
> eigenvectors? Due to the experimental manipulation measurement values on time
> points t1 and t2 changed for each subject.
>
> Many thanks
> Stefan
> --
>
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>



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https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. Received on Thu 05 Jun 2008 - 17:33:42 GMT

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