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Re: what is the highest subscript in the array?!? [message #70770 is a reply to message #70769] Thu, 06 May 2010 21:21 Go to previous messageGo to previous message
Michael Galloy is currently offline  Michael Galloy
Messages: 1114
Registered: April 2006
Senior Member
On 5/6/10 8:44 pm, munka wrote:
> On May 6, 9:26 pm, Michael Galloy<mgal...@gmail.com> wrote:
>> munka<mynameismu...@gmail.com> wrote:
>>> Hello team,
>>
>>> I find myself wanting to use the highest subscript in an array and
>>> coding "flux[n_elements(flux)-1]"... I seem to remember seeing a
>>> shortcut on here, and I can't remember what it is.
>>
>> You are stuck using that until IDL 8.0 comes out, then you can use -1.
>>
>> Mike
>> --www.michaelgalloy.com
>> Research Mathematician
>> Tech-X Corporation
>
> :(
> -1 doesn't even work.
>
> Also, clicking on your signature link brings me to "http://
> www.google.com/www.michaelgalloy.com" :\

You need IDL 8.0:

IDL> a = findgen(10)
IDL> print, a[-1]
9.00000
IDL> print, a[-2]
8.00000

Mike
--
www.michaelgalloy.com
Research Mathematician
Tech-X Corporation

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