qqnorm with histogram?

Hi Spencer,
The last example for the twoord.plot function (plotrix) does this.

Jim
       Does a function exist that combines a normal probability plot
with a histogram and maybe a density estimate on the same plot?

       I'm revising the Wikipedia article on "Normal probability plot",
and I think it would be good to provide examples of this.

       Thanks,
       Spencer

p.s.  Please reply also with suggestions for how to improve that
Wikipedia article if you feel so inclined.

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qqnorm with histogram?

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