comp.lang.idl-pvwave archive: archive » Extract Array positions for a set of Values

Home » Public Forums » archive » Extract Array positions for a set of Values

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

Extract Array positions for a set of Values [message #75436]

Wed, 09 March 2011 02:48

Paul Magdon
Messages: 8
Registered: January 2011

Junior Member

Hi,
have a quite simple problem for which I can find a fas solution:

1.) I have an IntArray A (e.g a result from LABEL_REGION)

1 1 1 1 0 0 0
1 1 1 1 0 0 2
0 0 0 0 9 0 2

2.) I have a vector B with Integers (e.g. 1,2,9)

Now I want to extract the positions of B in A and set all values in A which are included in B to let's say 99. How can I do this without a loop?
I tested HISTOGRAM(,REVERSE_INDICES) but as B is not consecutive (e.g 1,2,3,4) I can't find a solution.

Cheers Paul

Report message to a moderator

[Message index]

Extract Array positions for a set of Values

By: Paul Magdon on Wed, 09 March 2011 02:48

Previous Topic:	How to implement periodic boundaries in IMSL_PDE_MOL?
Next Topic:	selecting radnom number from 2D array

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

]

Current Time: Wed Oct 08 15:23:05 PDT 2025

Total time taken to generate the page: 0.00469 seconds