how can i plot a 3d graph using 3 different sets of data?

Hi all, I have 3 different sets of data (from xls file). I would like to use 2 of them to assign the respective x and y axis value to the corresponding z Value. To be more precise, i have x and y values varying from -24 to 24 not evenly spaced (eg : -24,-21,-19,-17....). Let Xn be the number of x points and Yn be the number of y points. So i have Xn*Yn , z points i need to assign to the (x,y) pair accordingly. how can i do this? using mesh function? How?? thanls for ur time guys!

Answer 1

[Star Strider]

To use a mesh plot, you would have to use scatteredinterpolant.

I would use scatter3 or stem3 (my preference) to begin with to display your data and then decide if you want to do gridded interpolation.

[jorge sousa]

Thanks for ur time. Do you have any ideas on how i should define the matrixs?

[Joseph Cheng]

the documentation on scatter3 and stem3 will tell you how you should define the inputs.