[R] hist and normal curve

[Douglas Bates]

Erin Hodgess <hodgess at uhddx01.dt.uh.edu> writes:

> I would like to superimpose a normal curve on a histogram.
> 
> I've seen this example in a book, somewhere.
> 
> I know that you draw the hist, get the mean and sd
> of the data set, but then I'm stuck.

There is an example of overlaying a density estimate on a histogram in 

library(Devore5)
example(xmp01.01)

You can modify that to use the dnorm function instead of the density
estimate.  The important thing to remember is to use prob = TRUE in
the histogram.
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