build a Surface plot

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?

[KSSV]

What data is table? It depends on what data you have and what you want to plot.

Answer 1

[Bjorn Gustavsson]

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

[Pradeepta Sahu]

Unable to obtain the plot.

[Pradeepta Sahu]

The surface is for only 3 columns out of 8. i can able to find the table by few computations. But facing problem in surface plot as error like: 'Z must be a matrix, not a scalar or vector'.

[Bjorn Gustavsson]

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]

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.