Thread Subject: How to plot square pattern representing a matrix?

If I have a 10*10 matrix filled with elements like 1 or -1,
how do I plot a 10*10 grid where the square positions
represented by 1:s are black and the rest are white?

I mean a bit like
http://www.eigenvector.com/MATLAB/corrmap.html
but with black and white squares represennting 1:s and -1:s
in a matrix.

Hope someone can help.

Regards Emil

if your matrix is A try imagesc(A), that will give you a
coloured image. If you want it black and white you have
to use image and play with the input a bit to use the RBG
inputs

Arbg(:,:,1)=A>0;
Arbg(:,:,2)=A>0;
Arbg(:,:,3)=A>0;
image(Arbg)



"Emil Svensson" <u4u@usa.com> wrote in message <fifb16
$inj$1@fred.mathworks.com>...
> If I have a 10*10 matrix filled with elements like 1 or -
1,
> how do I plot a 10*10 grid where the square positions
> represented by 1:s are black and the rest are white?
>
> I mean a bit like
> http://www.eigenvector.com/MATLAB/corrmap.html
> but with black and white squares represennting 1:s and -
1:s
> in a matrix.
>
> Hope someone can help.
>
> Regards Emil

Thanks! It helped :-)
Regards Emil

"Aaron Callard" <no.thanks@hotmail.com> wrote in message
<fiff4f$lmm$1@fred.mathworks.com>...
> if your matrix is A try imagesc(A), that will give you a
> coloured image. If you want it black and white you have
> to use image and play with the input a bit to use the RBG
> inputs
>
> Arbg(:,:,1)=A>0;
> Arbg(:,:,2)=A>0;
> Arbg(:,:,3)=A>0;
> image(Arbg)
>
>
>