comp.lang.idl-pvwave archive: archive » Re: Compare two variables

Home » Public Forums » archive » Re: Compare two variables

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

Re: Compare two variables [message #61283 is a reply to message #61281]

Sat, 12 July 2008 12:54

Sven Geier
Messages: 17
Registered: July 2002

Junior Member

d.poreh@gmail.com wrote:

> Hi everyone
> I have got a problem and I don?t know how to solve it:
> I have two variables like this:
> A, which col*row=2*4
> B, which col*row=4*100.
> All A?s couples (x,y)?s are somewhere in the 2th and 3th column of
> Result. I want to take this rows (I want to extract that rows in
> result which 2th and 3th columns are settled in the B?s ).for
> example:
> A=[[1,2], [3,4] ,[5,6], [7,8]]
>
> B=[?.[11,22,1,2,],?.. [44,55,3,4]?.. ,[22,99,5,6], ?.[77,66,7,8]?]
>
> ?..=means there are some other data
> I just want to extract these rows and put them in a new variable
> Any help?
> Cheers

I'm probably just misunderstanding something, but what is wrong with

line_1_index = where (b[2,*] eq a[0,0] and b[3,*] eq a[1,0])
line_2_index = ....
...

result = [b[*,line_1_index],b[*,line_2_index],b[... ],... ]

It's not terribly elegant but if it's only 5 lines and has to be typed only
once, what's the point of optimizing the hell out of it?

--
http://www.sgeier.net
My real email address does not contain any "Z"s.

Report message to a moderator

[Message index]

		Re: Compare two variables By: d.poreh on Mon, 14 July 2008 06:00
		Re: Compare two variables By: ben.bighair on Mon, 14 July 2008 04:57
		Re: Compare two variables By: Joost Aan de Brugh on Mon, 14 July 2008 01:09
		Re: Compare two variables By: Sven Geier on Sat, 12 July 2008 12:54
		Re: Compare two variables By: d.poreh on Sat, 12 July 2008 06:18
		Re: Compare two variables By: d.poreh on Fri, 11 July 2008 10:14
		Re: Compare two variables By: Jean H. on Fri, 11 July 2008 08:49
		Re: Compare two variables By: Joost Aan de Brugh on Fri, 11 July 2008 08:41

Previous Topic:	number problem
Next Topic:	EARN MONEY $2500-10000 PER WEEK

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

]

Current Time: Fri Oct 10 14:52:50 PDT 2025

Total time taken to generate the page: 1.51976 seconds