[R] problems with rexp ?

[Liaw, Andy]

Have you looked at the range of the numbers?  I got

> range(dexp(data)/(1-pexp(data)))
[1] 1 1

and 

range(dexp(data)/(1-pexp(data)))-1.0
[1] -1.665335e-15  1.110223e-15

Andy


> -----Original Message-----
> From: Juan Ramon Gonzalez [mailto:jrgonzalez at ico.scs.es]
> Sent: Friday, May 03, 2002 9:34 AM
> To: r-help at stat.math.ethz.ch
> Subject: [R] problems with rexp ?
> 
> 
> Does anyone know if R have any problems with the exponential 
> random number
> generation (function rexp)?
> 
> I comment it because I executed
> 
> data<-sort(rexp(100))
> plot(data,dexp(data)/(1-pexp(data)),type="l")
> 
> and the graphic isn't constant.
> 
> (Note: exponential distribution have a constant hazard failure rate).
> 
> Thank you,
> 
> Juan
> 
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