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Re: Bad data in structure (NaN HowTo?) [message #22663 is a reply to message #22582]

Tue, 28 November 2000 00:00

Craig Markwardt
Messages: 1869
Registered: November 1996

Senior Member

Randall Skelton <rhskelto@atm.ox.ac.uk> writes:

> Thanks to both Pavel and Craig for their help.
>
>> In your case, I'd automate the search for numerical fields, because I
>> wouldn't be able to go through 450 fields myself. None of my business,
>> but are you sure this is the best way to organize the data?
>
> I am certainly open to suggestions on how to organize this data... It is
> spectroscopic remote sensing data and during measurements I get a dump of
> all of the sensor data (every 2 seconds) and one high resolution spectrum

Randall, is it true that you are filling the -12345 values within your
CALL_EXTERNAL procedure? If so, then perhaps you can try the second
thing I suggested. Namely, in IDL create whatever "null" variables
you want, either NaN or whatever. Then pass those variables into the
CALL_EXTERNAL procedure. Then your C code can easily subtitute those
values wherever needed. However there is no such thing as NaN for
integers so I'm not sure what you can do there.

Craig

--
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Craig B. Markwardt, Ph.D. EMAIL: craigmnet@cow.physics.wisc.edu
Astrophysics, IDL, Finance, Derivatives | Remove "net" for better response
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[Message index]

		Re: Bad data in structure (NaN HowTo?) By: Martin Schultz on Thu, 23 November 2000 00:00
		Re: Bad data in structure (NaN HowTo?) By: Randall Skelton on Wed, 22 November 2000 16:03
		Re: Bad data in structure (NaN HowTo?) By: Craig Markwardt on Wed, 22 November 2000 00:00
		Re: Bad data in structure (NaN HowTo?) By: Pavel A. Romashkin on Wed, 22 November 2000 00:00
		Re: Bad data in structure (NaN HowTo?) By: Craig Markwardt on Tue, 28 November 2000 00:00
		Re: Bad data in structure (NaN HowTo?) By: Pavel A. Romashkin on Mon, 27 November 2000 00:00

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