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Re: Undefined Variable: DC_Write_Fixed/DC_Write_Free - PV WAVE [message #79690 is a reply to message #79689]

Thu, 22 March 2012 13:34

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

Erini Lambrides writes:

> Hello all, I am getting this error message when i attempt to .run my
> procedure compare_target_offset2
>
> Compiled module: COMPARE_TARGET_OFFSET2.
> % Compiled module: $MAIN$.
> % DC_WRITE_FREE: Variable is undefined.
>
>
> and the same for DC_WRITE_FIXED, when I try to write my data in a
> variable to a .txt file. These two functions should be in the pv wave
> library - I have version 9.00.
>
> here is how I use it within the code:
>
> status= DC_WRITE_FREE('C:\Cryo\SphereCenterData
> \referencetargetdata.txt',rtar)
>
> I apologize now if it's a silly mistake. Thanks!

I don't know if this is a "silly" mistake, but it
is certainly not an uncommon one. The directory that
contains these two functions is simply not on your
IDL path. (You can print the directories on your
IDL path to confirm this for yourself.)

I think if you add the directory to your IDL path,
and restart IDL, you will find that things work
a LOT better. :-)

Cheers,

David

--
David Fanning, Ph.D.
Fanning Software Consulting, Inc.
Coyote's Guide to IDL Programming: http://www.idlcoyote.com/
Sepore ma de ni thui. ("Perhaps thou speakest truth.")

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[Message index]

		Re: Undefined Variable: DC_Write_Fixed/DC_Write_Free - PV WAVE By: Heinz Stege on Thu, 22 March 2012 18:52
		Re: Undefined Variable: DC_Write_Fixed/DC_Write_Free - PV WAVE By: David Fanning on Thu, 22 March 2012 13:38
		Re: Undefined Variable: DC_Write_Fixed/DC_Write_Free - PV WAVE By: David Fanning on Thu, 22 March 2012 13:34
		Re: Undefined Variable: DC_Write_Fixed/DC_Write_Free - PV WAVE By: Erini Lambrides on Tue, 27 March 2012 10:43

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