Re: [R] Reconstructing Datasets

From: Angel Lopez <angel_lul_at_hotmail.com>
Date: Fri 04 Mar 2005 - 21:11:42 EST

Hi Laura,
You might want to have a look at function decevf in package pastecs. It uses eigenvector filtering to reconstruct a signal using only the most representative eigenvectors.
It is applied for time series but you could easily modify the code to use it for spatial data also.
Bests,
Angel

Laura Quinn wrote:
> Hi,
>
> Is it possible to recreate "smoothed" data sets in R, by performing a PCA
> and then reconstructing a data set from say the first 2/3 EOFs?
>
> I've had a look in the help pages and don't seem to find anything
> relevant.
>
> Thanks in advance,
> Laura
>
> Laura Quinn
> Institute of Atmospheric Science
> School of Earth and Environment
> University of Leeds
> Leeds
> LS2 9JT
>
> tel: +44 113 343 1596
> fax: +44 113 343 6716
> mail: laura@env.leeds.ac.uk
>
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> .
>



R-help@stat.math.ethz.ch mailing list
https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html Received on Fri Mar 04 21:31:42 2005

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