[R] calculating probability from the density function

Bert Gunter gunter.berton at gene.com
Mon Oct 1 17:33:43 CEST 2012

Forget density(). Smooth the ecdf instead.

?monotone.smooth (in package fda, for monotone smoothing, which may be
?locfit (in package locfit)

... and many many others

-- Bert

On Mon, Oct 1, 2012 at 6:46 AM, Eugene Kanshin <kanshined1 at gmail.com> wrote:
> Hello,
> I have a data x with normal (or very close to normal) distribution, I can
> plot a density distribution with density(x,...). My question is is there
> any way to calculate an area under this distribution (=probability) for
> particular range of x values, let's say for x from 0 to 2? I was not able
> to find any kind of simple procedure to do this.
> Thanks in advance for your help,
> Evgeny.
>         [[alternative HTML version deleted]]
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Bert Gunter
Genentech Nonclinical Biostatistics

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