On Mon, Dec 15, 2008 at 9:48 PM, Mike Williamson <this.is....@gmail.com>wrote:
> I want to make some simple CDF (cumulative distribution function) plots > to check whether distributions are Gaussian / normal. qqnorm() > As long as I am asking: I also want to plot more than one distribution > or group. For instance, I want to plot 3 different factors on the same > graph, where each factor has it's own cdf line. Any ideas for this? a=qqnorm(rnorm(100)) b=qqnorm(runif(100)) plot( a$x[order(a$x)] ,a$y[order(a$x)] ,type='l' ,ylim=c(min(c(a$y,b$y)),max(c(a$y,b$y))) ,xlim=c(min(c(a$x,b$x)),max(c(a$x,b$x))) ) lines( b$x[order(b$x)] ,b$y[order(b$x)] ,col='red' ) -- Mike Lawrence Graduate Student Department of Psychology Dalhousie University www.thatmike.com Looking to arrange a meeting? Do so at: http://www.timetomeet.info/with/mike/ ~ Certainty is folly... I think. ~ [[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.
