comp.lang.idl-pvwave archive: archive

Home » Public Forums » archive » Re: null array

Show: Today's Messages :: Show Polls :: Message Navigator
E-mail to friend

Re: null array [message #36472 is a reply to message #36471]

Wed, 24 September 2003 17:47

tomson
Messages: 39
Registered: March 2003

Member

Thanks everybody.

I think this method
if n_elements(array) eq 0 then array=scalar else array=[array,scalar]
is quit good if I donot define array.

But What I want to do is to initialize several arrays which are in common
block and their length will be changed for different call and the lengths
of them may be zero. If the lengthes of them are zero, the process will be
changed. If there isnot any initialization, the array return to the main
program may be the former ones.

Best
Tomson

"Reimar Bauer" <R.Bauer@fz-juelich.de> ????
news:bkr2ls$cjvi$1@zam602.zam.kfa-juelich.de...
> Tomson wrote:
>
>> Hi, I need a null array without any elements in it. Then elements will
be
>> added to it. But how to define a null array?
>>
>> Best
>> Tomsom
>
> What is this? I don't use matlab.
>
> Would you like to do something like this.
>
> if n_elements(array) eq 0 then array=scalar else array=[array,scalar]
>
> Or in a loop
>
> for i=0,10 do begin
> ..
>
> if i eq 0 then array=scalar else array=[array,scalar]
> endfor
>
> Reimar
>
>
> --
> Forschungszentrum Juelich
> email: R.Bauer@fz-juelich.de
> http://www.fz-juelich.de/icg/icg-i/
> ============================================================ ======
> a IDL library at ForschungsZentrum Juelich
> http://www.fz-juelich.de/icg/icg-i/idl_icglib/idl_lib_intro. html
>

Report message to a moderator

[Message index]

		Re: null array By: David Fanning on Wed, 24 September 2003 18:35
		Re: null array By: tomson on Wed, 24 September 2003 17:47
		Re: null array By: JD Smith on Wed, 24 September 2003 09:17
		Re: null array By: R.Bauer on Wed, 24 September 2003 08:11
		Re: null array By: Paul Van Delst[1] on Wed, 24 September 2003 06:52
		Re: null array By: Ben Panter on Wed, 24 September 2003 02:08
		Re: null array By: Ben Panter on Wed, 24 September 2003 01:33
		Re: null array By: R.Bauer on Tue, 23 September 2003 20:21
		Re: null array By: David Fanning on Tue, 23 September 2003 20:04
		Re: null array By: David Fanning on Fri, 26 September 2003 02:24
		Re: null array By: Stein Vidar Hagfors H[2] on Tue, 30 September 2003 12:36

Previous Topic:	How to read the data like this?
Next Topic:	Programming ENVI

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

]

Current Time: Thu Oct 09 20:10:39 PDT 2025

Total time taken to generate the page: 0.00357 seconds