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How to generate surface from scatter3 with xyz coordinates and specified color

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bsriv
bsriv 2022-10-24
回答： Matt J 2022-10-24
Hi, I have generated a 3D scatter plot using scatter3 with XYZ coordinates (all column vectors) and a separate color column vector
>> figure;scatter3(tbl.pred1,tbl.pred2,tbl.pred3,200,tbl.dv,'filled');color=colorbar;color.Label.String='DV';colormap jet;hold on;xlabel('predictor 1');ylabel('predictor 2');zlabel('predictor 3');set(gca,'FontSize',20);
Which produces an expected 3d scatter plot:
I would like to turn this into a 3d surface but I'm stuck on how. Would very much appreciate any guidance. Thank you!

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Matt J
Matt J 2022-10-24
Perhaps as follows,
[x,y,z]=deal(tbl.pred1,tbl.pred2,tbl.pred3);
T = delaunay(x,y);
trisurf(T,x,y,z)

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