Please follow posting guide and provide a simple completely self-contained example showing the error. Then I'll take a look. Frank
Sander wrote: > > Dear all, > > I have performed a simple logistic regression using the lrm function from > the Design library. Now I want to plot the summary, or make a nomogram. I > keep getting a datadist error: options(datadist= m.full ) not created with > datadist. > I have tried to specify datadist beforhand (although I don't know why it > should be done): > > ddist<-datadist(d) ##where d is my dataset > options(datadist="ddist") > > This doesn't work. It only works when I convert my original dataset to > datadistL > > d<-datadist(d) > options(datadist="d") > > After this I can perform all the diagnostics and make a nomogram. However, > my dataset 'd' is now completely useless, and I have to run the code to > read > in my data again and again to perform actions that are not related to > datadist. Please let me know what I am overlooking. > > This is some more of the code: > > m.full<-lrm(event~pa+pb+pc, x=TRUE, y=TRUE, data=d) > stats<-m.full$stats > hshrink<-(stats["Model L.R."]-stats["d.f."])/stats["Model L.R."] > hshrink > ddist<-datadist(d) > options(datadist="ddist") > > par(mfrow=c(2,2)) > plot(m.fulldesign) ##Error I described > f.sum<-summary(m.fulldesign) ##Error I described > nomogram(m.full) ##Error I described > > > Best regards, > Sander van Kuijk > > [[alternative HTML version deleted]] > > ______________________________________________ > 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. > ----- Frank Harrell Department of Biostatistics, Vanderbilt University -- View this message in context: http://r.789695.n4.nabble.com/Datadist-error-tp3444780p3445223.html Sent from the R help mailing list archive at Nabble.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.
