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Re: Name of arrays [message #79260 is a reply to message #79259]

Mon, 20 February 2012 01:46

Israel Rodriguez Herm is currently offline

Israel Rodriguez Herm
Messages: 13
Registered: February 2012

Junior Member

On Feb 19, 5:00 pm, David Fanning <n...@idlcoyote.com> wrote:
> Israel Rodriguez Hermelo writes:
>> Why did you say that's a slippery slope? Is there a better solution?
>> I'm already using it with no problems.
>
> I see a lot of people who are just getting started with
> programming wanting to name their variables like this.
> It seems cool, but in the end it just leads to unmaintainable
> programs. A variable is a variable. The variable named "a" is
> just as good as the variable named "b". Yes, variables should
> have good names in programs. But just give them a name
> (e.g., "theseMonths") in the program module where you need them.
> Don't go looking for them all over God's creation!
>
> 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.")

Thank you for your advice David. I'll try to avoid using
scope_varfecht then.
My problem however is not simply that I want to have pretty names for
my variables. The problem is that I don't know a priori the number of
arrays that I will need nor their size.
For example, in some cases the input data might correspond to the
months of February and July, but in other cases might correspond to
January, March and April.

MONTH = [ 'FEBRUARY' , 'JULY' , 'SEPTEMBER' ]

To deal with this, I was trying:

Nmonths=N_ELEMENTS(MONTH)

for i=0, Nmonths-1 do begin

readcol, MONTH(i)+'_data.txt', TEMPERATURE

Ndays=N_ELEMENTS(TEMPERATURE)

(scope_varfetch(MONTH(r)+'TEMPERATURE', /enter))=fltarr(Ndays)

endfor

I see why you wrote that scope_varfecht makes the leads to
unmaintainable
programs and I would prefer any other solution but I've been looking
for it in the forum and I haven't found any. Do you have any
suggestion?
Thanks in advance!

Regards,

Israel

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[Message index]

		Re: Name of arrays By: jeffnettles4870 on Mon, 20 February 2012 07:01
		Re: Name of arrays By: Fabzi on Mon, 20 February 2012 03:01
		Re: Name of arrays By: Israel Rodriguez Herm on Mon, 20 February 2012 01:46
		Re: Name of arrays By: David Fanning on Sun, 19 February 2012 08:00
		Re: Name of arrays By: Israel Rodriguez Herm on Sun, 19 February 2012 07:06
		Re: Name of arrays By: David Fanning on Sun, 19 February 2012 07:03
		Re: Name of arrays By: Israel Rodriguez Herm on Sun, 19 February 2012 06:54
		Re: Name of arrays By: Lajos Foldy on Sun, 19 February 2012 05:31
		Re: Name of arrays By: greg.addr on Tue, 21 February 2012 03:53
		Re: Name of arrays By: Russell[1] on Mon, 20 February 2012 13:27
		Re: Name of arrays By: Brian Wolven on Mon, 20 February 2012 10:15

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