[R] Mental Block with PCA of multivariate time series!

Laura Quinn laura at env.leeds.ac.uk
Mon May 16 09:32:48 CEST 2005

Please could someone point me in the right direction as I appear to be
having a total mental block with fairly basic PCA problem!

I have a large dataframe where rows represent independent
observations and columns are variables. I am wanting to perform PCA
sequentially on blocks of nrows at a time and produce a graphical output
of the loadings for the first 2 EOFs for each variable.

I'm sure I've performed a very similar routine in the past, but the method
is currently escaping me.

Any help gratefully received!

Laura Quinn
Institute of Atmospheric Science
School of Earth and Environment
University of Leeds

tel: +44 113 343 1596
fax: +44 113 343 6716
mail: laura at env.leeds.ac.uk

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