MATLAB: Scatter plot of 2 colors with X Y and Z data- Z (0 and 1)

Question

I have 3 column vectors X Y and Z.

Z is parameter 0 or 1

I wish to plot scatter plot of Z at respective (X,Y) with 2 colors to signify either 0 or 1.

I shall be grateful for any help…………

Answer 1

N = 100 ;
x = rand(N,1) ;
y = rand(N,1) ;
z = rand(N,1) ;
idx1 = (z<0.5) ;
idx2 = (z>0.5) ;
scatter(x(idx1),y(idx1),25,'r','filled');
hold on
scatter(x(idx2),y(idx2),25,'b','filled');
legend('red z < 0.5',   'blue z > 0.5');