gamma_est {gofgamma} | R Documentation |
The maximum-likelihood estimators for the shape
and scale
parameters of a gamma distribution are computed due to the method of Bhattacharya (2001).
gamma_est(data)
data |
vector of positive valued observations |
returns a bivariate vector containing (shape
,scale
) estimated parameter vector.
Bhattacharya, B. (2001) "Testing equality of scale parameters against restricted alternatives for m \ge 3
gamma distributions with unknown common shape parameter". Journal of Statistical Computation and Simulations, 69(4):353-368, DOI
gamma_est(stats::rgamma(100,shape=3,scale=6))