Hello,
On Tue, Jun 12, 2012 at 12:44 PM, Michael <comtech....@gmail.com> wrote:
> Hi all,
>
> Lets say I have a matrix A which is m x n.
>
> I also have a mask matrix MASK which is m x n with values in T/F, where T
> values make a sub-matrix in regutangular shape...
>
> I applied B=A[MASK] and it didn't work as expected...
>
> Any thoughts?
What did you expect and what happened?
I'm assuming you did:
B <- A[MASK]
and I would expect the the result would be a vector whose size is
the number of elements in MASK that is TRUE. To get a matrix, you then
set the dim attribute (but I didn't test that).
Take care
Oliver
--
Oliver Ruebenacker
Bioinformatics Consultant (http://www.knowomics.com/wiki/Oliver_Ruebenacker)
Knowomics, The Bioinformatics Network (http://www.knowomics.com)
SBPAX: Turning Bio Knowledge into Math Models (http://www.sbpax.org)
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