| Re: Strings as variables? [message #24170 is a reply to message #24165] |
Fri, 09 March 2001 15:10  |
Craig Markwardt
Messages: 1869
Registered: November 1996
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Senior Member |
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brbojkov@netscape.net (B. R. Bojkov) writes:
> Hello All,
>
> I am writing a "general" HDF extraction subroutine using IDL 5.4 and I
> am stuck...
>
> Let me explain:
>
> 1. I read from an HDF file the names (strings) representing the
> different data arrays found in the given file (this can change from
> file to file).
>
> 2. I successfully extract the different data arrays found in the file
> and assign them to their matching dataset names using the EXECUTE
> command.
>
> 3. What I want to do next is pass the actual data variables (with
> their appropriate name from point 2.) to another subroutine (I want
> to pass the actual variables, not the string containing their names).
>
> Am I missing something big? Any suggestions?
You probably aren't missing something big. The answer is to also call
the subroutines mentioned in number 3 by using the EXECUTE statement
as well. This sounds kind of kludgey, but that's probably because
steps 1 and 2 are a bit kludgey as well. I'm wondering, why does the
name of the variable make a difference? Couldn't you just call it
DATA in your procedure?
If the number of variables is itself variable, then this is a time to
use pointers, or more specifically arrays of pointers.
Craig
--
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Craig B. Markwardt, Ph.D. EMAIL: craigmnet@cow.physics.wisc.edu
Astrophysics, IDL, Finance, Derivatives | Remove "net" for better response
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