>>>>> "Romain" == Romain Francois <[hidden
email]>
>>>>> on Tue, 13 Dec 2005 15:40:59 +0100 writes:
........
Romain> A few comments :
Romain> - your code should be reproductible, otherwise it is useless.
(that
Romain> recommandation is on the posting guide)
Romain> - that question is a top ten question on that list, go to the
archive
Romain> and you will find answers. (also posting guide)
Romain> BTW, it should be a FAQ and what about an example of overlaying
in hist
Romain> help page ?
What about the following one --- do also note the comments though!
set.seed(14)
x <- rchisq(100, df = 4)
## Comparing data with a model distribution should be done with qqplot()!
qqplot(x, qchisq(ppoints(x), df = 4)); abline(0,1, col = 2, lty = 2)
## if you really insist on using hist() ... :
hist(x, prob = TRUE, ylim = c(0, 0.2))
curve(dchisq(x, df = 4), col = 2, lty = 2, lwd = 2, add = TRUE)
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