On Thu, 10 Mar 2005, Jessica North wrote:

> Hello All,
>
> I would like to plot 3 isotope ratios (dD, d18O, and d13C) on a single
> graph and examine correlations. Would anyone have suggestions for
> setting up such a graph (maybe triangular?) and analysis? Has anyone had
> success doing this with a particular software? Or is there a better way
> to present the data and examine relationships?
>
> Many thanks,
>
> Jessica

Hi Jessica:

You may try a colored 2D plot, with color to represent the third axis. Or,
Matlab or Mathematica would plot your data within a 3D box.


> Jessica C. North
> Resource Consultant - PhD Candidate
>
> Department of Chemistry
> University of Otago
> PO Box 56, Dunedin
> New Zealand
> Tel 64 3 479 7915 (please note new office number)
> Mob 021 044 0382
> Fax 64 3 479 7906
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>

- Mihali

--
Mihali A. Felipe, Ph.D.
Systems Programmer
Gerstein Lab : Bioinformatics
Yale University Molecular Biophysics and Biochemistry