[R] rhyp function from fBasics

[Sundar Dorai-Raj]

Erin Hodgess wrote:

> Dear R People:
> 
> There is a function from the fBasics library to get the probability
> and quantiles for the hyperbolic probability function.
> 
> Is there one that will estimate parms of the hyperbolic probability
> function from a data set, please?
> 
> Thanks in advance!
> 
> Sincerely,
> Erin Hodgess
> mailto: hodgess at gator.uhd.edu
> R Version 2.0.1 windows
> 

Erin,

You can use MASS::fitdistr to do this, I believe.

library(fBasics)
library(MASS)
x <- rhyp(1000, alpha = 2, beta = 1, delta = 1)
fitdistr(x, dhyp, list(alpha = 1, beta = 0.5, delta = 0.5))

--sundar