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From: Natalie Sin Hwee on 29 Mar 2010 18:58
Hiya,

i have a matrix of random 0 and 1s in a 1000-by-1000.

how can i 'find' all the elements that contain 1's in only column 1? ( i will apply it to each column seperately)

at the moment i have
[r1,c1]=find(A~=1) but that gives me a x-by-2 matrix of the element row and column position.

as i want to separate them out into

values from column 1,2....1000.

cheers!
Natalie
From: Matt Fig on 29 Mar 2010 19:24
A = round(rand(5))

find(A(:,1))

Depending on what you are going to do with the data, this may not be what you want to do.
From: Natalie Sin Hwee on 29 Mar 2010 19:38
"Matt Fig" <spamanon(a)yahoo.com> wrote in message <horcrl$imt$1(a)fred.mathworks.com>...
> A = round(rand(5))
>
> find(A(:,1))
>
> Depending on what you are going to do with the data, this may not be what you want to do.

===

hey matt!
exactly what i wanted!!!!

thanks a billllion!!!
Natalie
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