Hi,
If the tvCL = theta1 + theta2*CrCL
CL = tvCL * exp(nCL)
I tried the following but it says "variable 'tvCL' multiple definition" in the warnings tab
covariate (CrCL)
tvCL = Theta1 + Theta2*CrCL
stpartm(CL = tvCL * exp (nCL))
how do I write the code that can define the tvCL with a function that includes a covariate?
Thanks!