On Thu, 2 Sep 2021, Enrico Schumann wrote:
There is no column 'ht'.
Enrico, New eyeballs caught my change in variable name that I kept missing. Thanks very much, Rich ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see 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.
