I got the following output when I try the code at the end. > str(attr(terms1, 'variables')) language list(skips, Panel, Opening) > class(attr(terms1, 'variables')) [1] "call"
I checked ?call, where 'call' is a function. Could somebody let me know what a 'call' class is and what 'language' is? ########## form1=skips ~ Panel * Opening terms1=terms(form1) str(attr(terms1, 'variables')) class(attr(terms1, 'variables')) ______________________________________________ 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.
