MATLAB: Marginal Distribution Plot

[chendry2001]

Hi

I am trying to find a way to create a marginal distribution plot in matlab. I have lots of X-Y values on a scatter plot and need to find the approximate distribution. I have the Statistics Toolbox which is probably needed.

I used POLYTOOL which gives me a mean and standard deviation value for the data on the Y axis, based on a single value for X. Ideally I would want a mean and standard deviation for both though, or at least something that describes the thing as a whole.

This is kind of what I'm looking for:

http://www.ehponline.org/members/2000/suppl-5/883-893bernillon/fig3.gif

http://www.unt.edu/benchmarks/archives/2003/february03/rss_003.gif

Any help much appreciated! Thanks

 

[MATLABdude]

I don't know if you're just looking for a histogram in X and Y, but if you are, you can have MATLAB do that for you:
http://www.mathworks.com/access/helpdesk/help/techdoc/ref/hist.html

I have no idea how you can make it so that you can the vertically-oriented histogram, however.

 

[MATLABdude]

This post here may also be of interest to you:
http://tolstoy.newcastle.edu.au/R/e6/help/09/03/8262.html

EDIT: Found via a Google search for MATLAB rotating histogram

 

[chendry2001]

thanks. it was more about finding the parameters of the distribution than the 2 plots on the side of the graph. But i can prob draw a vertical histogram now and add a probability distribution line and establish the values from that. Should work

Thanks for your help!