Version 2.2.0

The new version of plot3logit includes several new S3 methods for field3logit and multifield3logit classes, revise some function interfaces and argument definitions, and extends the upstream compatibility to the package VGAM.

It follows the content of the NEWS file related to version 2.2.0, whereas at this page there is the full NEWS file.

Major changes

• Now plot3logit depends on R v. 3.5 or later.
• Now field3logit can read categorical trinomial models fitted through function vgam of package VGAM (included amongst suggested packages).
• list objects can be passed to argument delta of field3logit for computing multiple fields (a multifield3logit object is returned).
• Argument ncurves of function field3logit has been renamed to nstreams. No backward compatibility has been implemented.
• Point estimates are passed to argument model of field3logit, matrix should have an attribute with the values the dependent variable may take. The attribute has been renamed from labs to levels. No backward compatibility has been implemented.
• Added package generics amongst dependencies in section Imports.

Minor changes

• Added dataset USvote2016.
• Corrected bug on reading ordinal models from matrix.
• Added S3 methods of generics tidy for class field3logit.
• Added S3 methods of generics as.data.frame, as_tibble and tidy for class multifield3logit.
• Made autoplot the S3 method of generic autoplot for field3logit objects
• Added S3 method of generic label for class field3logit.
• Added S3 method of generic label for class multifield3logit.
• Added S3 method of generics [ and [<- for multifield3logit class.
• Added the generic labels<- and the S3 methods for field3logit and multifield3logit class.

Typos and other marginal changes

• Removed names from components of multifield3logit objects.