Conditional Plotting
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Hi all,
I would like to plot the following graph only for the range where y2=>y1, leaving Z for y1>y2 empty.
y1=0:0.01:1;
y2=0:0.01:1;
[Y1,Y2]=meshgrid(y1,y2);
Z=((Y1 - Y2).*(Y1.^2 + 4*Y1.*Y2 - 6*Y1 + 7*Y2.^2 - 18*Y2 + 12))/12;
surf(Y1,Y2,Z)
xlabel('Y1')
ylabel('Y2')
How can I do this? Many thanks for any help. David
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采纳的回答
Jonathan Sullivan
2012-4-9
y1=0:0.01:1;
y2=0:0.01:1;
[Y1,Y2]=meshgrid(y1,y2);
Z=((Y1 - Y2).*(Y1.^2 + 4*Y1.*Y2 - 6*Y1 + 7*Y2.^2 - 18*Y2 + 12))/12;
Z(Y1 > Y2) = NaN;
surf(Y1,Y2,Z)
xlabel('Y1')
ylabel('Y2')
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