Hi:

For a normal probability plot, use qqnorm().

Example:
 x <- rnorm(50)
 qqnorm(x)
 qqline(x)

See the help page ?qqnorm for customization options.

HTH,
Dennis


On Tue, Jan 19, 2010 at 11:09 PM, Natalia Slobodina <nataslo@uw.edu> wrote:

> I am hoping to create a graph that will look like it is plotted on
> arithmetic probability plot. Something similar to how this is done in
> Excel:
> http://peltiertech.com/Excel/Charts/ProbabilityChart.html.
>
> I can't quite find a code that will transform the linear axis into a
> cumulative percent axis with an arithmetic probability. And I am not good
> enough at R to do that myself.
>
>  Any help will be greatly appreciated.
>
> --
> Natalia S Slobodina
> Graduate Student
>
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