Hello, Ralf,

Sorry I was being clear.
I mean probability density function
like normal f(x)=(1/2*pi*sd )*exp(xxxx)  something like that .
Sorry about the confusion

Carrie

On Thu, Jun 24, 2010 at 10:43 PM, Ralf B <ralf.bierig@gmail.com> wrote:

> Hi Carrie,
>
> the output is defined by you; density() only creates the function
> which you need to plot using the plot() function. When you call
> plot(density(x)) you get the output on the screen. You need to use
> pdf() if you want to create a pdf file, png() for creating a png file
> or postscript if you like ps; there are many others.
>
> Ralf
>
> On Thu, Jun 24, 2010 at 10:35 PM, Carrie Li <carrieandstat@gmail.com>
> wrote:
> > Hi everyone,
> >
> > I am confused regarding the function "density".
> > suppose that there is a sample x of 100 data points, and plot(density(x))
> > gives it's pdf ?
> > or it's more like histogram only ?
> >
> > thanks for any answering
> >
> > Carrie
> >
> >        [[alternative HTML version deleted]]
> >
> > ______________________________________________
> > R-help@r-project.org mailing list
> > https://stat.ethz.ch/mailman/listinfo/r-help
> > PLEASE do read the posting guide
> http://www.R-project.org/posting-guide.html
> > and provide commented, minimal, self-contained, reproducible code.
> >
>

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