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eigenql to predict [message #64463]

Tue, 23 December 2008 16:33

evan.manning
Messages: 1
Registered: December 2008

Junior Member

I read and used David Fanning's excellent "Principal Components
Analysis in IDL".
http://www.dfanning.com/code_tips/pca.html

What I can't quite figure out how to do is relate back to other info
I have about my original data set. I know a shift for each of my
98 original spectra and I want to use PCS to predict the shift from
an unknown spectrum. It seems like it should be simple, but I'm
stuck. I see there are IMSL routines IMSL_MULTIREGRESS
and IMSL_MULTIPREDICT that seem set up to do this easily.
But I don't have IDL analyst. What is the equivalent with the free
IDL library?

-- Evan

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