• 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).