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Re: Stupid Question#1 [message #13289]

Tue, 03 November 1998 00:00

Harald Frey
Messages: 41
Registered: March 1997

Member

rob cosgrave wrote:

> Hi Folks,
> am having a spot of bother with smething that should be really
> simple. I cannot get FOR ....DO BEGIN ENDFOR loops to work. I thought
> first it was something to do with my program, so I tried a really simple
> one, and that didn't work. Then I cut and paste the example out of the
> online documentation and that didn't work. And then I tried running one
> of the scripts which came with IDL and that didn't work either. They
> all failed at the endfor, and didn't close the loop.
> I thought it was just me doing something stupid, but when
> the programs that came with it failed also...
> My version is the IDL student on a Win95 machine. Could the
> student editionness be the problem?
> Again, apologies for the dumb question, but this is driving me crazy,
> and it's kinda hard to program without loops!
> thanks
> Rob Cosgrave

It's hard to make a diagnostics without the lines that failed. However, I assume
that you tried the FOR-loop in the interactive mode and did not take into
account that this works only on one line and that you have to combine multiple
statements with the "$" and/or "&" characters.

One simple example:

for i=0,10 do begin & print,i & j=i^2 & print,j & endfor

Harald frey
hfrey@ssl.berkeley.edu

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[Message index]

		Re: Stupid Question#1 By: Harald Frey on Tue, 03 November 1998 00:00
		Re: Stupid Question#1 By: davidf on Mon, 02 November 1998 00:00
		Re: Stupid Question#1 By: Kevin Ivory on Mon, 02 November 1998 00:00
		Re: Stupid Question#1 By: davidf on Mon, 02 November 1998 00:00

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