How to make a 4D graph

Hi,

I am extremely new to Matlab (downloaded approximately 10 minutes ago new). I have been looking online for some templates, but nothing seems to be quite what I am looking for. I have four data points: length (x), width (z), height (y), and CO2 concentration (c). I want the fourth data point, the CO2 concentration, however, represented by a color depending on the concentration. Say, a darker color hue for lower concentrations and a lighter color hue for higher concentrations. Is there a way I can do this where I can just insert an excel file? I just have no idea where to start or where to look. Any help is much appreciated!

Answer 1

[Lokesh Ravindranathan]

Technically, you cannot visualize 4d plot in MATLAB. That being said, you can 3d slices in matlab using the slice command http://www.mathworks.com/help/matlab/ref/slice.html. However, you might want to choose a syntax which allows colors in the code.

To load an excel file into MATLAB, use xlsread http://www.mathworks.com/help/matlab/ref/xlsread.html.

You will have to write your code for loading and plotting. Maybe, there are user submitted code http://www.mathworks.com/matlabcentral/fileexchange/ for this routine.

Answer 2

[Leah]

http://www.mathworks.com/help/matlab/ref/scatter3.html

check out vary marker color