How can I make a probability density contour plot of 3d data?

Asked Jan 20 '15 at 07:16

Active Jan 20 '15 at 07:21

Viewed 2,935 times

I have a XxYxZ array of data.

I generate a XxY scatter plot and then overlay them all for each Z.

But of course, this looks messy and all of the data points are on top of each other. I want to make a contour plot, showing probability density for the scattered data.

% A is a XxY matrix
for ii = length(A)
figure(1)
plot(A,squeeze(B(:,:,ii)),'o')
hold on
xlabel('A')
ylabel('B')
end

So how do I take the XxYxZ matrix B and XxY matrix A and plot the scatter plot of B and A at each Z onto a 2d probability density contour plot?

This is what I have... enter image description here

This is the kind of thing I'm going for....

edited Jan 20 '15 at 07:21

asked Jan 20 '15 at 07:16

Alex

[This](http://stackoverflow.com/questions/18639518/generate-and-plot-the-empirical-joint-pdf-and-cdf) is a little messy, but may give you some ideas – Luis Mendo Jan 20 '15 at 09:40
please post your example data, respectively runnable code of what you have. – Robert Seifert Jan 20 '15 at 10:35
How many distinct values of Z are there? Is Z a categorical or continuous variable? – Robert Dodier Jan 21 '15 at 06:39

How can I make a probability density contour plot of 3d data?

0 Answers0