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Not where [message #18780]

Mon, 07 February 2000 00:00

bowman
Messages: 121
Registered: September 1991

Senior Member

I often find myself using WHERE to divide an array into two parts. I do
one operation on the first part and a different operation on the second
part.

It would be nice to have an auxiliary array containing all the indices
that are *not* returned by WHERE in i. For example, it would be nice to
do

a = FLTARR(...)
i = WHERE((a...), count, NOT_WHERE = j, NOT_COUNT = not_count)
IF (count GT 0L) THEN a[i] = ...
IF (not_count GT 0L) THEN a[j] = ...

Lacking the above changes to WHERE, can anyone suggest a fast and easy way
to get j=NOT(i) ?

Thanks, Ken

--
Dr. Kenneth P. Bowman, Professor 409-862-4060
Department of Meteorology 409-862-4466 fax
Texas A&M University bowmanATcsrp.tamu.edu
College Station, TX 77843-3150 Replace AT with @

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[Message index]

		Not where By: bowman on Mon, 07 February 2000 00:00
		Re: Not where By: Alex Schuster on Tue, 08 February 2000 00:00
		Re: Not where By: bowman on Mon, 07 February 2000 00:00
		Re: Not where By: Martin Schultz on Mon, 07 February 2000 00:00
		Re: Not where By: John-David T. Smith on Mon, 07 February 2000 00:00
		Re: Not where By: Craig Markwardt on Mon, 07 February 2000 00:00
		Re: Not where By: Alex Schuster on Mon, 07 February 2000 00:00
		Re: Not where By: Paul Krummel on Mon, 21 February 2000 00:00

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