James Rome <jamesrome <at> gmail.com> writes: > ... does the call automatically assume that the variable > names are from the frame in the data= statement?
Yes, it does. How about bwplot(tt~factor(OnHour,levels=0:23)|Runway,data=gdf, drop.unused.levels=FALSE) ? ______________________________________________ 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.