Histogram of joint probability distribution

Hi, I would like to ask how is it possible to plot a 3D histogram (chart type in excel = 3-D column) based on a joint probability table?

for instance,

gender

               jan         feb      mar        apr
male            0.05      0.15    0.025      0.375 
female         0.125      0.075   0.05       0.15

I've searched through hist3. but it seems that we need to have the inputs of X, Y, Z, which appear to be in the same length.

in this case, what shall be the inputs to plot a 3D histogram? Thanks in advance.

Answer 1

[Oleg Komarov]

You already have calculated the probabilities thus you have to use bar3() instead of hist3() (which is used when you still have to count)

X = [0.05      0.15    0.025      0.375 
     0.125      0.075   0.05       0.15]
h = bar3(X');

Some additional embelishments

% Set labels
set(gca,'XtickL',{'male','female'},'YtickL',{'jan','feb','mar','apr'})

% Change colors
colormap cool

% Set transaprency
set(h(1),'facea',.5)

[Lee ZY]

Thank you so much Oleg! Didn't know it can be implemented in such a way.

Thanks again and nice day!!