Plotting a 2D matrix

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I need to plot a matrix M which is 300*42 in size. On the X axis I need to plot 1:42. On the Y Axis I need to plot the value corresponding to the 42 values. On the Z axis I need to plot the 1:300 value.
I tried using the plot3 function in a loop like this and I wouldnt get it right :
for i = 1:300
plot( 1:42, M(i, 1:42), 1:i);
hold on;
drawnow ;
end
I get the error Vectors are not of similar lengths. Please Help. Many thanks
Regards
  3 Comments
Gnaneswar Nadh satapathi
Gnaneswar Nadh satapathi on 27 Jun 2014
plot it as
surf(M)

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Accepted Answer

Andrei Bobrov
Andrei Bobrov on 27 Jun 2014
Edited: Andrei Bobrov on 27 Jun 2014
s = size(M);
[z,x] = ndgrid(1:s(1),1:s(2));
data = permute(num2cell(cat(3,x,M,z), 2),[3,2,1]);
plot3(data{:});
or
s = size(M);
[x,z] = ndgrid(1:s(2),1:s(1));
plot3(x,M.',z);

More Answers (1)

David Sanchez
David Sanchez on 27 Jun 2014
Maybe you are thinking no something like this:
M=rand(300,42); % your data here
[xx, yy] = meshgrid(1:42,1:300);
plot3(xx,yy,M,'*')

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