On Thu, Jul 28, 2011 at 8:26 AM, Griffith Rees <[email protected]> wrote: > I think this page quite succinctly describes this issue: > http://www.statmethods.net/input/variablelables.html
It would be easy to add to data.table. You could also add support outside of data.table by writing label.data.table and similar functions. Actually using the labels for useful things is more difficult. I often find it useful just to use more verbose variable names that include spaces as follows: > dt <- data.table(`My first column` = 1:3, `A character column` = > letters[1:3], check.names = FALSE) > str(dt) Classes 'data.table' and 'data.frame': 3 obs. of 2 variables: $ My first column : int 1 2 3 $ A character column: Factor w/ 3 levels "a","b","c": 1 2 3 That way, columns look better with automatic plotting and with lattice or ggplot legends. - Tom _______________________________________________ datatable-help mailing list [email protected] https://lists.r-forge.r-project.org/cgi-bin/mailman/listinfo/datatable-help
