Hello All,
I am using Phoenix WinNonlin 8.2 Linear Mixed Effects Model tool to identify differences between a Treatment and Placebo.
On the Final Fixed Parameters output, I noticed that the program is calculating the estimate, CI and p-value for Placebo, and that for Treatment those appear as 'Not estimable'.
I ask if it's possible to define the variable (e.g., Treatment instead of Placebo) for which the program will calculate the estimates.
Thank you in advance
Sara