[amelia] problem with imputation

I'm attempting to do imputation using the following command line: amelia(jan, m=5, p2s=2, empri=0, tolerance=0.0001, startvals=1, archive=TRUE, incheck=T, ords=c("v1", "v2", "v3", "v4", "v5", "v7", "vv1", "vv2", "vv3", "vv4", "vv5", "vv7"), collect=FALSE, outname="jan", write.out=TRUE, keep.data=TRUE) The problem I'm running into is that every time I run this command, v5 does not get imputed. I have the exact same number of missing observations of v5 after the imputation as before. I get the following warning message: Warning message: In rbinom(nrow(x.orig), ordrange[k], p[, k]) : NAs produced On a separate and less important note, is there a way when using the R command line to prevent Amelia from printing the data in the R console? I want to save the datasets but not print them in the R window. Thank you in advance for any help you can give, Steve Shewfelt - Amelia mailing list served by Harvard-MIT Data Center [Un]Subscribe/View Archive: http://lists.gking.harvard.edu/?info=amelia