Hello, Maybe something like the following.
lst <- list(data.frame(name="sample1", red=20), data.frame(name="sample1", green=15), data.frame(name="sample2", red=10), data.frame(name="sample 2", green=30)) fun <- function(DF){ data.frame(name = DF[, 1], color = colnames(DF)[2], colnum = DF[, 2]) } lst2 <- lapply(lst, fun) result <- do.call(rbind, lst2) result Hope this helps, Rui Barradas Citando Ed Siefker <ebs15...@gmail.com>: > I have a list of data as follows. >> list(data.frame(name="sample1", red=20), data.frame(name="sample1", >> green=15), data.frame(name="sample2", red=10), >> data.frame(name="sample 2", green=30)) > > [[1]] > name red > 1 sample1 20 > > [[2]] > name green > 1 sample1 15 > > [[3]] > name red > 1 sample2 10 > > [[4]] > name green > 1 sample2 30 > > I would like to massage this into a data frame like this: > > name red green > 1 sample1 20 15 > 2 sample2 10 30 > > I'm imagining I can use aggregate(mylist, by=samplenames, merge) > right? But how do I get the list of samplenames? How do I subset > each dataframe inside the list? > > ______________________________________________ > 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.htmland provide commented, > minimal, self-contained, reproducible code. [[alternative HTML version deleted]] ______________________________________________ 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.