[R] Fitting inter-arrival time data

[Adelchi Azzalini]

> the two parts into
>      Y = p * 0 + (1-p) * X
> where p is the proportion of 0's, and X represents the  continuous
> component of the random variable.

I must amend myself... what I should have written is
   Y = I * 0 + (1-I) * X
where I is a Bernoulli random variable with probability p of "success" (i.e. 1)
and X represents the  continuous component of the random variable.

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