Data frame is list internally so length(df) = ncol(df) M
On Oct 27, 2011, at 2:44 PM, Muhammad Abuizzah <izzah...@yahoo.com> wrote: > Hi, > > I am converting a data.frame to xts. the data.frame is 4 columns and 1000 > rows. I get a message that "NROW (x) must match length(order.by) > class is data.frame, mode is list > > when I run > dim(x) # I get > 1000 4 #which is consistent with 1000 rows and 4 columns > > NROW (x) # I get > > 1000 # which is the right answer > > When I run length on each of columns in x separately using the "$" I get > 1000, which is the right number too. > So length on each of the columns individually gives me the right answer, but > length on the data.frame gives me the number of columns instead of the number > of rows, is there an explanation > > > thanks > > ______________________________________________ > 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. ______________________________________________ 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.
