[R] lrm-function: Interpretation and error message

e mixed with negative subscripts Does anyone know? I suspect that the first question is probably rather easy for you clever guys but I'm a statistics noob so... looking forward to your help. Martin Kellner __ R-help@r-project.org mailing list ht

[R] Comparing nonlinear regressions for different subsets of data

I have a dataset with four different treatments and two different values for each sample. I need to compare the subsets(the different treatments) somehow. The data look suspiciously much like some kind of e-function to me, or maybe michaelis-menten so they are not linear. With linear models it's st