If you type ?as.data.frame and ?data.frame you can see there are differences. data.frame() can take more than one "data parameter".
#producing different results: data.frame(c(1,2,3), c("hello","world","!")) as.data.frame(c(1,2,3), c("hello","world","!")) there are differences (in parameters) for "as.factor" and "factor" as well. Type ?factor ________________ Moritz Grenke http://www.360mix.de > Thanks for both responses. > is there a difference between the "as.factor" and "factor" commands > and also between "as.data.frame" and "data.frame"? ______________________________________________ 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.