Frank E Harrell Jr <f.harr...@vanderbilt.edu> wrote >Armida, > >I regret putting CTABLE as an option on the old SAS PROC LOGIS which was >a basis for PROC LOGISTIC. Classification tables are arbitrary and >misleading so I would stay away from them. > >You might build a model with and without the variable of interest and >plot the two predicted probabilities against each other for more insight >than what is provided by a classification table. >
Frank, I agree with 'arbitrary' but why 'misleading'? Purely for the same sorts of reasons that histograms can be misleading, or for other reasons, as well? Plotting the probabilities is an excellent idea, I recommend it often, in a variety of situations. Peter Peter L. Flom, PhD Statistical Consultant www DOT peterflomconsulting DOT com ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
