Re: [R] Multiple imputation, especially in rms/Hmisc packages

Frank E Harrell Jr Professor and ChairmanSchool of Medicine Department of Biostatistics Vanderbilt University On Tue, 10 Aug 2010, Mark Seeto wrote: Hi Frank (and others), Thank you for your comments in reply to my questions. I had not encountered contrast te

Re: [R] Multiple imputation, especially in rms/Hmisc packages

Hi Frank (and others), Thank you for your comments in reply to my questions. I had not encountered contrast tests before. I've looked in a few texts, but the only place I could find anything about contrast tests was your Regression Modeling Strategies book. You wrote that the "leave some var

Re: [R] Multiple imputation, especially in rms/Hmisc packages

Thank you for your reply Frank. I am not familiar with the contrast test, but I'll see what I can find out about it. Mark Frank Harrell wrote: On Mon, 9 Aug 2010, Mark Seeto wrote: Hello, I have a general question about combining imputations as well as a question specific to the rms and Hm

Re: [R] Multiple imputation, especially in rms/Hmisc packages

On Mon, 9 Aug 2010, Mark Seeto wrote: Hello, I have a general question about combining imputations as well as a question specific to the rms and Hmisc packages. The situation is multiple regression on a data set where multiple imputation has been used to give M imputed data sets. I know how to

[R] Multiple imputation, especially in rms/Hmisc packages

Hello, I have a general question about combining imputations as well as a question specific to the rms and Hmisc packages. The situation is multiple regression on a data set where multiple imputation has been used to give M imputed data sets. I know how to get the combined estimate of the covarian