Hi: On Tue, Aug 17, 2010 at 2:28 PM, maiya <maja.zaloz...@gmail.com> wrote:
> > Thanks, but that wasn't what I was going for. Like I said, I know how to do > a > simple chi-square density plot with dchisq(). > > What I'm trying to do is chi-square / degrees of freedom. Hence > rchisq(100000,i)/i). > > How do I do that with dchisq? > You write a function. Compare the following: # chi-square densities: curve( dchisq(x, df=5), 0, 50, col='red') curve( dchisq(x, df=10), 0, 50, col='blue', add = TRUE) curve( dchisq(x, df=20), 0, 50, col='green', add = TRUE) # chi-square density/df: g <- function(x, df) dchisq(x, df)/df curve(g(x, df = 5), 0, 50) curve(g(x, df = 10), 0, 50, col = 'blue', add = TRUE) curve(g(x, df = 20), 0, 50, col = 'green', add = TRUE) Is that what you're after? HTH, Dennis > -- > View this message in context: > http://r.789695.n4.nabble.com/plotting-functions-of-chi-square-tp2329020p2329057.html > Sent from the R help mailing list archive at Nabble.com. > > ______________________________________________ > 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.
