07-27-2016 08:33 AM - last edited on 07-27-2016 11:48 AM by ballardw
May you please assist, from the below syntax for an augumented design
07-28-2016 08:15 AM
07-28-2016 10:54 AM
The non-estimability is almost certainly due to empty cells. You are fitting C and X*C, and if every level of C is not "connected" for every level of X, then C cannot be estimated at the levels where connection doesn't happen. See the documentation regarding estimable functions for more depth on this. As a way to check this, add this statement to your GLM:
and look for missing cells.