Hi: First of all, look at str(dataframename)
It sounds as though you need to convert Month to an ordered factor, something like df$Month <- ordered(df$Month, levels = month.abb) df$Month The second command is to check that the newly created factor orders the months appropriately. Here's a small example: > tst <- data.frame(m = month.abb, y = rnorm(12)) > str(tst) 'data.frame': 12 obs. of 2 variables: $ m: Factor w/ 12 levels "Apr","Aug","Dec",..: 5 4 8 1 9 7 6 2 12 11 ... $ y: num -0.269 0.0125 0.4868 -0.4784 -0.2618 ... > tst$m [1] Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Levels: Apr Aug Dec Feb Jan Jul Jun Mar May Nov Oct Sep > tst$m <- ordered(tst$m, levels = month.abb) > tst$m [1] Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 12 Levels: Jan < Feb < Mar < Apr < May < Jun < Jul < Aug < Sep < ... < Dec <<==== > q <- ggplot(tst, aes(x = m, y = y)) > q + geom_point(size = 2) + geom_line(aes(group = 1)) HTH, Dennis On Tue, May 11, 2010 at 7:44 PM, michael westphal <mi_westp...@yahoo.com>wrote: > Hello: > > I have a dataframe, where the first column in a month: > > Month CATCHMENT_ med min max > 1 Apr Alknda01 71.68080 11.9406600 196.2753 > 2 Apr Alknda02 69.44580 12.1065600 196.2753 > 3 Apr ArialKhan 39.89310 5.8598700 175.4433 > 4 Apr Arjun01 4.79652 0.0093336 55.7136 > 5 Apr Arjun02 4.79652 0.0093336 55.7136 > 6 Apr Arun01 52.42320 0.1571928 241.9566 > 7 Apr Arun02 31.05060 0.1738902 420.6930 > 8 Apr Atrai01 52.58640 2.2828830 190.8891 > 9 Apr Atrai02 51.98850 2.6499780 189.7872 > 10 Apr Babai01 27.55440 0.0332469 130.7787 > > > I want to sort the rows by Month, not alphabetically, but in the calendar > order. Any suggestions? > > Thanks, > > Michael > > > > [[alternative HTML version deleted]] > > ______________________________________________ > 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. > [[alternative HTML version deleted]] ______________________________________________ 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.
