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Re: rebin question [message #29913 is a reply to message #11091]

Fri, 22 March 2002 11:14

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

Jonathan Joseph (jj21@cornell.edu) writes:

> You could certainly write a function that takes an arbitrary number
> of arguments up to a limit, then use n_params to see how many you
> actually got. It looks like IDL only allows up to 8-dimensional
> arrays (which is a goodly number). I only wrote the 2-d case,
> but the n-d case should be possible.

I'm not sure "arbitrary" is the right word here.
One can write procedures and functions with a "variable"
number of arguments, up to some arbitrary (to RSI)
number of 100 or 200 or whatever it is. But each
variable *must* be defined on the procedure or function
definition line.

In the case of the function under discussion, you
could define 8 arguments (the first would probably
have to be a required argument, and the rest could
be optional). But you will need some kind of CASE
statement to call REBIN correctly:

CASE N_PARAMS() OF
0: Message, 'Whoops> Wrong!"
1: A = REBIN(arg1)
2: A = REBIN(arg1, arg2)
...
ENDCASE

Cheers,

David
--
David W. Fanning, Ph.D.
Fanning Software Consulting
Phone: 970-221-0438, E-mail: david@dfanning.com
Coyote's Guide to IDL Programming: http://www.dfanning.com/
Toll-Free IDL Book Orders: 1-888-461-0155

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[Message index]

		REBIN Question By: pford on Sat, 14 March 1998 00:00
		Re: REBIN Question By: pford on Wed, 18 March 1998 00:00
		Re: REBIN Question By: Armand J. L. Jongen on Tue, 17 March 1998 00:00
		Re: rebin question By: hradilv.nospam on Fri, 22 March 2002 09:11
		Re: rebin question By: Mark Fardal on Sun, 24 March 2002 22:50
		Re: rebin question By: Jonathan Joseph on Fri, 22 March 2002 10:40
		Re: rebin question By: Craig Markwardt on Fri, 22 March 2002 10:31
		Re: rebin question By: Jonathan Joseph on Mon, 25 March 2002 14:24
		Re: rebin question By: Mark Hadfield on Mon, 25 March 2002 14:07
		Re: rebin question By: JD Smith on Fri, 22 March 2002 11:49
		Re: rebin question By: Jonathan Joseph on Fri, 22 March 2002 11:20
		Re: rebin question By: David Fanning on Fri, 22 March 2002 11:14
		Re: rebin question By: hradilv.nospam on Fri, 22 March 2002 10:53
		Re: rebin question By: Jonathan Joseph on Fri, 22 March 2002 10:53

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