- Added a new function palmtree that fits partially additive
(generalized) linear model trees. These employ model-based
recursive partitioning (mob) based on (generalized) linear
models with some local (i.e., leaf-specific) and some global
(i.e., constant throughout the tree) regression coefficients.
- Splits in ordinal variables are now represented correctly in
the (still internal) list.rule method.
- Kaplan-Meier curves in "constparty" trees were plotted
incorrectly due to use a wrong scaling of the x-axis. Spotted
by Peter Calhoun .
- Use quote(stats::model.frame) instead of
as.name("model.frame").
- The as.party methods for rpart and Weka_tree now have a data =
TRUE argument so that by default the data is preserved in the
party object (instead of an empty model frame).
- The predict method for cforest objects did not work for one-row
data frames, fixed now.
- Added rot and just arguments to node_barplot for more fine
control of x-axis labeling (e.g., with 45 degree rotation).