Fit a linear model within anid and then output the parameters.
You can output the slope an intercept with either ODS or an OUTPUT statement.
The classical growth curve analysis (Wishert), requires the same time intervals (number and placement) so you can put all the wt's on the left hand side of the model and fit the curve within the times. IF you have that situation (you don't), this method is algebraically equivalent.
Thanks for the reply. It worked great. I have worked on logistic models before, its my first tryst with ODS output.
I am trying to get the output into excel. ODS gives a lot of options. But each of them has a lot of unwanted result. The final excel table I am looking to compile has only 3 columns:
an id, slope, intercept
Thats it. Anyway I can just extract slope and intercept only from the output and chuck the other inferences which I do not need at the moment?
With 4 other files like this, I am looking at a formatting nightmare otherwise!!