On Thu, Jul 1, 2021 at 1:46 PM Stephen Ellison <s.elli...@lgcgroup.com> wrote:
> > Please run the reproducible example provided. > When you do, you will see that write.csv writes an unnecessary empty > header field ("") over the row names column. This makes the number of > header fields equal to the number of columns _including_ row names. That > causes the original row names to be read as data by read.csv, following the > rule that the number of header fields determines whether row names are > present. read.csv accordingly assumes that the former row names are > unnamed data, calls the unnamed row names column "X" (or X.1 etc if X > exists) and then adds new, default, row names _instead of the original row > names written by write.csv_. > That's not helpful. > This depends on if you are reading the csv via R or something else, I would imagine. It not being "valid" CSV at all would likely cause some programs to choke entirely, I expect. I admit that's conjecture though, I don't have data on that one way or another. ~G [[alternative HTML version deleted]] ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel