Use bar3 instead of bar to plot multiple data in Matlab

Question

I have 3 matrices A , B and C where each of them is of size 21x2 . I use bar to plot each one separately. I'm wondering how I can plot the three together using bar3 ?

So using this code:

A=rand(21,2);
B=rand(21,2);
C=rand(21,2);
fig=figure();b1=bar(A);
fig2=figure();b2=bar(B);
fig3=figure();b3=bar(C);

will generate these three figures:

A:

B:

C:

And what I want to do is that I want them to be all the the same figure but plotted behind each other in the z direction to be something like this

Answer 1

The idea is to create new variables that contain all the data you want in each row intercalated with NaNs. Just that change gives you almost the solution.

for ii=1:size(A,1)
   A1((ii-1)*3+1)=A(ii,1);
   A1((ii-1)*3+2)=A(ii,2);
   A1((ii-1)*3+3)=NaN;

   B1((ii-1)*3+1)=B(ii,1);
   B1((ii-1)*3+2)=B(ii,2);
   B1((ii-1)*3+3)=NaN;

   C1((ii-1)*3+1)=C(ii,1);
   C1((ii-1)*3+2)=C(ii,2);
   C1((ii-1)*3+3)=NaN;
end

h=bar3(horzcat(A1',B1',C1'))

However, I am guessing that you also want to modify the colors. To do this, the idea is that you can get the colour data for each bar row using get(h(nrow),'Cdata') .

with this trick and your own colormap you should be able to colour the bars independently. It is not straightforward, but where's the fun if its easy!