[R] help in density estimation

[Greg Snow]

You could do:

b <- runif(10000, 0, 1)
tmp <- density(b, from=0.5, to=0.5, n=1)
tmp$y

As one direct approach.

You could also look at the logspline package for an alternative for density estimation that provides you with a density function (and also allows for finite  domains).

-- 
Gregory (Greg) L. Snow Ph.D.
Statistical Data Center
Intermountain Healthcare
greg.snow at imail.org
801.408.8111


> -----Original Message-----
> From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-
> project.org] On Behalf Of wangguojie2006
> Sent: Thursday, September 23, 2010 9:43 AM
> To: r-help at r-project.org
> Subject: [R] help in density estimation
> 
> 
> Hi, guys,
> 
> I'm using kernel "density" estimation. But how can I return to a
> density
> estimation for a fixed point?
> 
> For example,
> 
> b<-runif(1000,0,1)
> f<-density(b)
> 
> How can I get the value of density(b) at b=0.5?
> 
> Your help is extremely appreciated. Thanks.
> 
> Jay
> --
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> density-estimation-tp2552264p2552264.html
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> 
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