I'm trying to create a data frame in which some of the column names contain a dash "-". A simple example:
d <- data.frame(x = c(0, 1)) d <- data.frame(d, y = c(0,1)) names(d)[2] <- "a.-5" d x a.-5 1 0 0 2 1 1 d <- data.frame(d, y = c(0,1)) d x a..5 y 1 0 0 0 2 1 1 1 names(d)[2] <- "a.-5" d x a.-5 y 1 0 0 0 2 1 1 1 Why does the "a.-5" column name change to "a..5" when another column is added? Thanks, Mark Seeto ______________________________________________ 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.
