Re: [R] Fitting inter-arrival time data

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From: Adelchi Azzalini (azzalini@stat.unipd.it)
Date: Mon 30 Jun 2003 - 17:49:22 EST


Message-id: <20030630074922.3AE427CA825@tango.stat.unipd.it>

On Monday 30 June 2003 01:23, M. Edward Borasky wrote:
> I have a collection of data which includes inter-arrival times of requests
> to a server. What I've done so far with it is use "sm.density" to explore
> the distribution, which found two large peaks. However, the peaks are made
> up of Gaussians, and that's not really correct, because the inter-arrival
> time can never be less than zero. In fact, the leftmost peak is centered at
> somewhere around ten seconds, and quite a bit of it extends into negative
> territory.

if you data are positive, you could use

  sm.density(..., positive=TRUE)

and possibly make use of the additional parameter "delta" for fine tuning

best wishes,

Adelchi Azzalini

-- 
Adelchi Azzalini  <azzalini@stat.unipd.it>
Dipart.Scienze Statistiche, Università di Padova, Italia
http://azzalini.stat.unipd.it/

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