| Re: Most Common IDL Programming Errors [message #59750 is a reply to message #59738] |
Tue, 08 April 2008 19:27   |
David Fanning
Messages: 11724
Registered: August 2001
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Senior Member |
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Peter Mason writes:
> Getting "rows" mixed up with "columns" (whatever they are) when using IDL
> calls that involve matrices.
Oh, my gosh! I've been working on an EOF (Empirical
Orthogonal Functions) problem the past 3-4 days, and
I'll bet I spent half my time trying to wrap my mind
around this! "OK, does the LA_SVD routine think like
IDL or like matrix algebra? When it says the first
mode EOF is in the column of the output is that in
a linear algebra sense or an IDL sense?" One more day
of it and I'll be ready to buy Matlab. (Heck, all the
examples are in Matlab code.)
Even now, when I am *sure* I know what I'm doing,
I have momentary doubts. Why don't you write us
a primer, Peter? :-)
Cheers,
David
--
David Fanning, Ph.D.
Fanning Software Consulting, Inc.
Coyote's Guide to IDL Programming: http://www.dfanning.com/
Sepore ma de ni thui. ("Perhaps thou speakest truth.")
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