You need to tell the mailing list what you have tried. That way you
will get better help.
Here is one solution.
> foo <- rnorm(1000)
> probs <- seq(0,1,.1)
> foo <- rnorm(1000)
> bah <- quantile(foo,probs)
> plot(bah,probs)
But it turns out that
?ecdf
tells you there is an ecdf function. And then
plot(ecdf(foo))
gives an ECDF plot with a probability scale on the y axis.
(So it's hard to imagine what you were doing that didn't give you a
probability axis)
-Don
At 5:22 PM -0700 10/27/09, Jessica Goin wrote:>Hello;
>
>Can anyone tell me how to set my y-axis to a probability scale on an ECDF
>plot? Or alternatively, how to generate a plot of percent cumulative
>probability against concentration? DASplusR does this and calls it a CP
>plot, but I would like to be able to generate this outside of DASplusR-
>
>Thank you!
>
> [[alternative HTML version deleted]]
>
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--
---------------------------------
Don MacQueen
Lawrence Livermore National Laboratory
Livermore, CA, USA
925-423-1062
macq at llnl.gov