Table 1.
Negative binomial distribution | ||||||
---|---|---|---|---|---|---|
Formulae | Theta | Mean | AIC | GOF | RMSEc | RMSEv |
0.413 | 0.077 | 143 | 0.279 | 0.30 | 0.39 | |
176 | 40.3 | 1063 | 1.016 | 7.06 | 8.57 | |
0.373 | 0.520 | 497 | 0.675 | 1.03 | 1.05 |
Theta is the dispersion parameter as defined in the function glm.nb (package {MASS}) in R x64 version 3.0.2.
AIC, Akaike information criterion; GOF, goodness-of-fit; RMSE, root-mean-squared error.