Vector Generalized Linear and Additive Models
Description
This package fits many (150+) models and
distributions by maximum likelihood estimation (MLE)
or penalized MLE, using Fisher scoring. This is done
via the vector generalized linear and additive model
(VGLM/VGAM) classes and associated models (reduced-rank
VGLMs, quadratic RR-VGLMs, reduced-rank VGAMs, row-column
interaction models). These are abbreviated RR-VGLMs,
QRR-VGLMs, RR-VGAMs and RCIMs. These include constrained
and unconstrained quadratic ordination (CQO/UQO) models
in ecology as well as constrained additive ordination
(CAO).