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Re: Clever Where() test [message #4375 is a reply to message #4370]

Thu, 25 May 1995 00:00

Paul Probert
Messages: 7
Registered: May 1995

Junior Member

IDL allows you to give a zero subscript to a scalar,
so you can say:
i=WHERE(...)
IF i(0) EQ -1 THEN BEGIN
...

One word of caution. If you have a scalar element of a structure,
for some reason you can't do this:
x={i:0,j:1}
IF x.i(0) ... ;bombs
But you can make it work with more parentheses:
IF (x.i)(0) ... ;works

Paul Probert
University of Wisconsin

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[Message index]

		Re: Clever Where() test By: steinhh on Fri, 26 May 1995 00:00
		Re: Clever Where() test By: thompson on Thu, 25 May 1995 00:00
		Re: Clever Where() test By: Paul Probert on Thu, 25 May 1995 00:00
		Re: Clever Where() test By: thompson on Thu, 25 May 1995 00:00
		Re: Clever Where() test By: bertin on Thu, 25 May 1995 00:00
		Re: Clever Where() test By: afl on Wed, 24 May 1995 00:00
		Re: Clever Where() test By: offenbrg on Tue, 30 May 1995 00:00
		Re: Clever Where() test By: thompson on Tue, 30 May 1995 00:00

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