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Re: Variable assignment [message #35913 is a reply to message #35906]

Tue, 22 July 2003 08:41

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

Haje Korth writes:

> I am trying to assign a variable with data=data(index), where index is an
> array with 300000 elements. IDL answers "Too many elements". Is there away
> around this? Basically, I need to kill some lines in data that contain dummy
> values. This the data files are HDF, I cannot eliminate these data when the
> file is read with hdf_read.

Uh, at the risk of sounding impertinent, why don't
you just take smaller bites? :-)

Something like this:

indices = Where( array EQ BAD, count)
IF count GT 250000L THEN BEGIN ; Or whatever the number is
half = count/2
array[indices[0:half]] = -999
array[indices[half+1:*]] = -999
ENDIF ELSE array[indices] = -999

Cheers,

David
--
David W. Fanning, Ph.D.
Fanning Software Consulting, Inc.
Phone: 970-221-0438, E-mail: david@dfanning.com
Coyote's Guide to IDL Programming: http://www.dfanning.com/
Toll-Free IDL Book Orders: 1-888-461-0155

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[Message index]

		Re: Variable assignment By: Craig Markwardt on Tue, 22 July 2003 14:50
		Re: Variable assignment By: Haje Korth on Tue, 22 July 2003 12:20
		Re: Variable assignment By: Haje Korth on Tue, 22 July 2003 12:15
		Re: Variable assignment By: David Fanning on Tue, 22 July 2003 10:37
		Re: Variable assignment By: Craig Markwardt on Tue, 22 July 2003 10:28
		Re: Variable assignment By: David Fanning on Tue, 22 July 2003 08:41

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