How to plot four dimensional data?

I have a variable 'n' that is 1 by 81, 'm' that is 1 by 81, and 'o' that is 1 by 81. And the function 'f' that is 81 by 81 by 81 and is a function of 'n', 'm', and 'o'. How can I plot 'f' since its a function of three different variables?

Answer 1

[Kevin Holly]

This was just answered here:

https://www.mathworks.com/matlabcentral/answers/1563276-how-plot-4d-data?s_tid=srchtitle