ggeffects: Tidy Data Frames of Marginal Effects for ggplot2

General

• Better support for multivariate-response-models from brms.
• Support for cumulative-link-models from brms.
• ggpredict() now supports linear multivariate response models, i.e. lm() with multiple outcomes.

Changes to functions

• ggpredict() gets a pretty-argument to reduce and "prettify" the value range from variables in terms for predictions. This applies to all variables in terms with more than 25 unique values.

Bug fixes

• Recognize negative binomial family from brmsfit-models.