plot a vector with 3 axes

Hi all,

I am trying to plot a vector in a graph with 3 axes, but I am confused how to do it. I tried with plot 3.

The matrix is

A=[20 15 120 0.85;20 9 100 1.35;30 6 100 0.18; 30 9 140 1.65; 40 6 80 0.25;40 12 100 1.42]

So I would like to plot the 4th column, with 3 axes that are defined by the other three columns.

any ideas how to do that?

thanks!

[Image Analyst]

What does that mean exactly? Is column 1 the x values, column 2 the y values, and column 3 the Z values and you want a plot where the data point's value (the 4th column) is indicated by the size or color of the marker?

[Nikolas Spiliopoulos]

yeah actualy x,y,z are columns 1,2 and 3. And the 4th column is the f(x,y,z).

[Image Analyst]

How would you like the data point to look for different values of the 4th column? Let's say one (x,y,z) point had a value of 10 and another had a value of 140. In what way would they look different?

Answer 1

[Star Strider]

In this universe, we are limited to 3 large dimensions (although 11 may actually exist). The dimension in the plot can be the color of the markers:

figure
scatter3(A(:,1), A(:,2), A(:,3), 75, A(:,4), 'p', 'filled')
grid on

[Nikolas Spiliopoulos]

Hahaha yeah that's right,

I guess the question is not valid I was a bit confused

anyway thanks a lot!

Nikolas

[Star Strider]

As always, my pleasure!

Answer 2

[madhan ravi]

https://www.mathworks.com/help/matlab/ref/isosurface.html