What is wrong with my inputs for 'scatter3'?

I need help using 'scatter3' to make a 3d dot plot.

My inputs are:

x = 20000 x 1 datetime

y= 1 x 9 double

z = 9 x 20000 double

I'm trying scatter3(x,y,z). I keep getting an error saying: 'X, Y, Z, and size arguments must be vectors of the same length, matrices of the same size, or a mix of vectors and matrices where the length of the vectors matches either the number of rows or columns of the matrices."

I don't understand why I'm getting problems? Both the x and y lengths matches the row/column lengths of Z.

It works when I use surf, but not scatter3.

Thanks in advance!

Answer 1

[Voss]

% x, y, z similar to yours:
x = datetime(1e4*rand(200,1)+7.2e5,'ConvertFrom','datenum');
y = rand(1,9);
z = rand(9,200);
% make matrices X and Y by repeating elements 
% of x and y in a particular manner:
[X,Y] = meshgrid(x,y);
% use scatter3 with 3 matrices of the same size:
scatter3(X,Y,z)

[Victoria K]

Thanks! Tried that and it worked.

[Voss]

You're welcome!