[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
- Subject: Not where
- From: bowman(at)null.edu (Kenneth P. Bowman)
- Date: Mon, 07 Feb 2000 09:05:13 -0600
- Newsgroups: comp.lang.idl-pvwave
- Organization: Texas A&M University
- Xref: news.doit.wisc.edu comp.lang.idl-pvwave:18302
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
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
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) ?
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 @