Generating a 3D plot

I have two 1D functions

• Z1 =f(y)
• Z2 =g(x)

Where Z1, Z2, x and y are Nx1 vectors.

I wish to combine these and plot the resulting 2D function as a 3D plot. Combination is by a weighting function W = [w1 w2], where w1+w2=1.0.

• Z = h(x, y) = w1.*f(y) + w2. g(x)

Please can someone give me some example code to generate h() and plot it in a 3D graph.

Thank you

[Titus Edelhofer]

Hi,

there is an important piece of information missing: what is the relation between Z1, Z2 and h? Is e.g.

h(x,y) = f(y) * g(x)

or

h(x,y) = f(y) + g(x)

or ... ?

Titus

[Matlab2010]

apologies. updated.

Answer 1

[Michael Haderlein]

I guess with "3D-plot" you mean a surface plot? So it would be like

x=linspace(0,1,50); %I just choose random values here
y=linspace(-1,1,80); 
f=y.^2; %also here, I just do something random
g=exp(-x);
W=rand(2,1);

[F,G]=meshgrid(f,g);
Z=W(1)*F+W(2)*G;

surf(F,G,Z) %or
surf(f,g,Z) %or
surf(y,x,Z)