R: Parameter estimation for the Gamma distribution
gammafit
R Documentation
Parameter estimation for the Gamma distribution
Description
Estimates parameters for the Gamma distribution using the Method of Maximum Likelihood, works with weighted data.
Usage
gammafit(x, wt = NULL)
Arguments
x
A vector of observations
wt
Optional set of weights
Value
shape
The shape parameter
scale
The scale parameter (equal to 1/rate)
Author(s)
Jared O'Connell jaredoconnell@gmail.com
References
Choi, S. and Wette, R. (1969), Maximum likelihood estimation of the parameters of the gamma distribution and their bias, Technometrics, 11, 683-96-690.