You can use the
normal.and.t.dist()
function in the HH package, available from CRAN with
install.packages("HH")
This works on all platforms. There is menu access to the function through
Rcmdr if you install
install.packages("RcmdrPlugin.HH")
If you are on Windows, you can additionally control that function
interactively
from an Excel spreadsheet with the RExcel package.
Install with the
RthroughExcelWorkbooksInstaller package from CRAN.
Rich
On Mon, Nov 8, 2010 at 11:18 AM, Wu Gong <w...@mtmail.mtsu.edu> wrote:
>
> I want to create a graph to express the idea of the area under a pdf curve,
> like
>
> http://r.789695.n4.nabble.com/file/n3032194/w7295e04.jpg
>
> Thank you for any help.
>
> -----
> A R learner.
> --
> View this message in context:
> http://r.789695.n4.nabble.com/How-to-plot-a-normal-distribution-curve-and-a-shaded-tail-with-alpha-tp3032194p3032194.html
> Sent from the R help mailing list archive at Nabble.com.
>
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> PLEASE do read the posting guide
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