Re: [R] Multiple imputation for nominal data

2010-11-03 Thread Frank Harrell
The aregImpute function in the Hmisc package can do this through predictive mean matching and canonical variates (Fisher's optimum scoring algorithm). Frank - Frank Harrell Department of Biostatistics, Vanderbilt University -- View this message in context:

[R] Multiple imputation for nominal data

2010-11-02 Thread John Sorkin
I am looking for an R function that will run multiple imputation (perhaps fully conditional imputation, MICE, or sequential generalized regression) for non-MVN data, specifically nominal data. My dependent variable is dichotomous, all my predictors are nominal. I have a total of 4,500 subjects,

Re: [R] Multiple imputation for nominal data

2010-11-02 Thread Andrew Miles
There are a couple of packages that do MI, including MI for nominal data. The most recent of these is mi, but I believe mice might do it as well. Both are available on the CRAN, and both have useful articles that teach you how to use them. The citations for these articles can be found

Re: [R] Multiple imputation for nominal data

2010-11-02 Thread John Sorkin
Thank you! John John David Sorkin M.D., Ph.D. Chief, Biostatistics and Informatics University of Maryland School of Medicine Division of Gerontology Baltimore VA Medical Center 10 North Greene Street GRECC (BT/18/GR) Baltimore, MD 21201-1524 (Phone) 410-605-7119 (Fax) 410-605-7913 (Please call