[R] Density curve over a histogram

Achim Zeileis Achim.Zeileis at wu-wien.ac.at
Wed Apr 27 20:07:49 CEST 2005


On Wed, 27 Apr 2005 19:06:07 +0100 Paul Smith wrote:

> Dear All
> 
> I would like to draw a picture with the density curve of a normal
> distribution over a histogram of a set of random numbers extracted
> from the same normal distribution. Is that possible?

To quote Simon `Yoda' Blomberg: "This is R. There is no if. Only how."
(see fortune("Yoda"))

Try:

R> x <- rnorm(100)
R> hist(x, freq = FALSE)
R> curve(dnorm, col = 2, add = TRUE)

Z

> Thanks in advance,
> 
> Paul
> 
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