Help with calculator

Hello @Kenneth_Moreland

In my case, i am using 3D CSV Data which has following columns [ x, y, z, u1, u2, u3, T]

and I have followed the steps as you described but unfortunately an error message is coming up
"undefined u1 " while computing stream function.

could you please suggest to get rid of this issue?

My CSV file is
data.csv (332.6 KB)