[R] problems with rexp ?
ligges at statistik.uni-dortmund.de
Fri May 3 16:07:47 CEST 2002
Juan Ramon Gonzalez wrote:
> Does anyone know if R have any problems with the exponential random number
> generation (function rexp)?
> I comment it because I executed
> and the graphic isn't constant.
> (Note: exponential distribution have a constant hazard failure rate).
Well, plot() scales the "y"-values to fit best into the area:
data <- sort(rexp(100))
dexp(data)/(1-pexp(data)) # all 1 ???
dexp(data)/(1-pexp(data)) - 1 # almost !!
>From the computational point of view everything is looking very well,
Maybe you would like to set a ylim as in
plot(data,dexp(data)/(1-pexp(data)),type="l", ylim =c(0,2))
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