See the transcan and fit.mult.impute functions in the S-Plus Hmisc library:http://hesweb1.med.virginia.edu/biostat/s/help/transcan.html and the lrm function in the S-Plus Design library.
Frank Harrell -- [email protected] wrote: > > I have a logisitic regression model with continious and categorical > variables. I am trying to impute for missing values in most of the > variables and re-do the logisitic regression after the imputations > and find out if I can get better results. can any one direct me for > where to start and how can I impute for all the variables at the > same time. > Ula A. Nur > Nuffield Institute for Health Studies > University of Leeds > 71-75 Clarendon road > Leeds LS2 9PL > > Tel: 0113-2331913 > fax: 44-113-2333952 > e-mail:[email protected] -- Frank E Harrell Jr Prof. of Biostatistics & Statistics Div. of Biostatistics & Epidem. Dept. of Health Evaluation Sciences U. Virginia School of Medicine http://hesweb1.med.virginia.edu/biostat
