plotting matrix data on a 2D surface 1

[antiseptic]

hi all

i wish to plot a "boolean" matrix on a 2D surface, not like "mesh" or "surf", rather like a non-connected plot

something like
______________________
| * * |
| * |
| * * |
| * |
| * |
| * * |
|_______________*______|

where the matrix should be something like

( 0 0 1 0 0 1 0 1 0 0 0 )
( 0 0 0 1 1 0 0 0 0 1 0 )
a = ( 1 1 0 0 0 1 1 1 0 1 0 )
( 0 0 0 1 1 0 1 0 0 ....)
( ......................)

is this possible?

thanx in advance

P.D. i once had o copy of matlab with some toolboxes i cant remember where u could see a simulation of the brownian diffusion, and it looked quite what i want to do

 

[MikeyP]

This should do it

% define a random 16 x 16 boolean matix
a = reshape([(mlbs(8)+1)/2; 1],16,16);

% find the row and column indices for the TRUE values
[r,c] = find(a);

% plot the true values
plot(r,c,'*');

alternatively you can get a filled-in plot showing the same information using:

imagesc(a);

Hope this helps

M

 

[antiseptic]

thanks a lot!
both solutions work all right

P.D. thats for other readers: MLBS function is a function out of Frequency Domain System Identification toolbox (i dont have it, but thats no trouble to me)