build a Surface plot

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Pradeepta Sahu
Pradeepta Sahu 2017-10-16
评论： Pradeepta Sahu 2017-10-23
I have a table with 100 rows and 8 columns. I am trying to plot for any 3 variables from these data. How can i do it?
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KSSV
KSSV 2017-10-16
What data is table? It depends on what data you have and what you want to plot.

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回答（1 个）

Bjorn Gustavsson
Bjorn Gustavsson 2017-10-16
Have a look at the trisurf function, and if that's not good enough there used to be a couple of similar functions for making surface plots of triangulated meshes.
HTH
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Bjorn Gustavsson
Bjorn Gustavsson 2017-10-18
Yes that is because the surface plots expect the input Z to be a matrix. For data in your format where you wand to connect your points in the vectors X Y and Z to a surface you might have to do a Delaunay-triangulation to generate a number of triangles connecting your points, after that you should be able to use the trisurf function. If your points are in a 10-by-10 grid you could simply reshape the vectors and use surf:
X = reshape(X,[10,10]);
Y = reshape(Y,[10,10]);
Z = reshape(Z,[10,10]);
surf(X,Y,Z)
If that doesn't work use trisurf according to its help.
First just plot the points to see which of the above solutions works for your case:
plot3(X,Y,Z,'*-')
HTH
Pradeepta Sahu
Pradeepta Sahu 2017-10-23
Actually first, i have generated a table for certain intervals using few calculations by giving some experimental data. After this i was trying to plot by using any three columns from the generated table(not the experimental table). At that time, i'm facing errors.

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