comp.lang.idl-pvwave archive: archive » IDL Beginner exercise help

Home » Public Forums » archive » IDL Beginner exercise help

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

Re: IDL Beginner exercise help [message #93749 is a reply to message #93747]

Wed, 12 October 2016 00:35

Yngvar Larsen
Messages: 134
Registered: January 2010

Senior Member

Or

IDL> indgen(4,3, start=10)
10 11 12 13
14 15 16 17
18 19 20 21

which strictly speaking does not answer the specific question by not using [10:21], but has the same answer :)

PS: since OP is a beginner, I might point out that it is in general not a good idea to work with INTARR/INDGEN since the 16-bit integers these create, quickly will bite you with overflow problems. LONARR/LINDGEN (32-bit integers) should be a better default choice unless you are 100% certain that your data and the operations applied on them will fit in the interval [-32768,32767].

On Wednesday, 12 October 2016 03:13:01 UTC+2, wlandsman wrote:
> One way is
> IDL> a = reform( [10:21], 4,3)
>
> where REFORM reshapes your 12 element vector into a 4 x 3 array.
>
> On Tuesday, October 11, 2016 at 8:00:33 PM UTC-4, Cheryl wrote:
>
>>
>> Can I ask you one more question:)?
>>
>> How to create a 4 by 3 integer array that counts from 10 to 21?
>> C= INTARR(4,3) ; this is an integer array of two dimensions
>> but how do I write it with [10:21]?
>>
>> Thank you

Report message to a moderator

[Message index]

		IDL Beginner exercise help By: smnadoum on Mon, 10 October 2016 19:49
		Re: IDL Beginner exercise help By: Markus Schmassmann on Tue, 11 October 2016 02:42
		Re: IDL Beginner exercise help By: smnadoum on Tue, 11 October 2016 16:09
		Re: IDL Beginner exercise help By: smnadoum on Tue, 11 October 2016 17:00
		Re: IDL Beginner exercise help By: wlandsman on Tue, 11 October 2016 18:12
		Re: IDL Beginner exercise help By: Yngvar Larsen on Wed, 12 October 2016 00:35

Previous Topic:	ncdf_varput for NetCDF coordinate axes
Next Topic:	How to supress dialog popup when netcdf file is corrupt?

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

]

Current Time: Wed Oct 08 19:31:14 PDT 2025

Total time taken to generate the page: 0.00218 seconds