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Re: Accessing "main" level variables [message #18595 is a reply to message #18588]

Wed, 19 January 2000 00:00

Craig Markwardt
Messages: 1869
Registered: November 1996

Senior Member

Martin Schultz <martin.schultz@REMOVE.dkrz.de> writes:

> Craig Markwardt wrote:
>>
>> [...]
>>
>> I like your questino. I know I will get flamed for saying it, but I
>> think there are some times when it is desireable for a program to
>> deposit its results into the main level. For example, a fully canned
>> curve fitting program may want to return the fitting results. This
>> should of course be done with full control and permission of the user.
>> ... portion deleted ...
>
> No! No flaming. But as you describe it, the solution to your problem
> would
> sound like almost the typical object oriented approach. Simple enough,
> too,
> once the user understands he/she has to write
> obj_fit->get_parameter,a0=a0,m=m
> (or something similar)
> ... portion deleted ...

I agree with you from a *programmer's* point of view. A programmer
wants a clean programming interface with predictable behavior.
Clearly a procedure that modifies external variables goes against this
ideal.

HOWEVER, from a lowly *user's* perspective, I assert that sometimes it
would be nice for a program to manipulate some main level variables
for me. I know, because I'm both a programmer and a user. Querying
objects as you suggest, while linguistically pure, will get stale
pretty quickly while I am working interactively at the command line.

In the back of my mind I would like to write a nice graphical curve
fitting application using MPFIT, and I want it to be simple simple
simple. The question is, how do I get the results out once the fit is
finished?

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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[Message index]

		Re: Accessing "main" level variables By: Michael Lefsky on Wed, 19 January 2000 00:00
		Re: Accessing "main" level variables By: Craig Markwardt on Wed, 19 January 2000 00:00
		Re: Accessing "main" level variables By: Craig Markwardt on Wed, 19 January 2000 00:00
		Re: Accessing "main" level variables By: Martin Schultz on Wed, 19 January 2000 00:00
		Re: Accessing "main" level variables By: Carsten Dominik on Wed, 19 January 2000 00:00
		Re: Accessing "main" level variables By: Craig Markwardt on Tue, 18 January 2000 00:00
		Re: Accessing "main" level variables By: mallors on Tue, 18 January 2000 00:00

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