MATLAB: How to do a scatter plot with different color and symbols

scatter

Hi Everyone,
I want to plot scatter plot with diffrent symboles and color for my posative and negative data,
I have:
X: vector
Y vector
Z:[ -1 2 -3 4] so I made it:
Z1[NaN 2 Nan 4]
z2[-1 NaN -3 NaN]
I used:
scatter(X,Y,[],Z1,'r','filled','d'); hold on;
scatter(X,Y,[],Z2,'b','filled','c')
however it hasn't worked
Any help,
Thanks in advance!
Riyadh

Best Answer

X = 0:4;
Y = 5:9;
Z = [ -1 2 -3 4];
ind = Z>=0;
scatter(X(ind),Y(ind),'r','filled','d'); 
hold on
scatter(X(~ind),Y(~ind),'b','filled','c')
hold off
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