[R] Density estimate with bounds

[Gavin Simpson]

On Thu, 2009-11-05 at 10:37 +0100, Justine Rochon wrote:
> Dear R users,
> 
> I would like to show the estimated density of a (0, 1) uniformly
> distributed random variable. The density curve, however, goes beyond 0
> and 1 because of the kernel smoothing. 
> 
> Example:
> 
> x = runif(10000)
> plot(density(x))
> 
> Is there a way to estimate the density curve strictly within (0, 1)
> and still use some sort of smoothing?

Read ?density and in particular the arguments 'from' and 'to':

 from,to: the left and right-most points of the grid at which the
          density is to be estimated; the defaults are 'cut * bw'
          outside of 'range(x)'.


HTH

G

> 
> Any help would be greatly appreciated.
> 
> Best regards,
> 
> Justine Rochon
> 
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