Solved
Invalid variable definition
I definitely defined f(x,beta), but when I try to draw a diagram, the following error occurs.
How can I solve this problem?
Inside the red box, "This variable is not defined. Make sure the label is set correctly."
ttokoroAnswer
21-Topaz I
June 17, 2022
Move your plot under the definition of RFfit(x).
t.t.