search for: bsplit

...to use package rpart. I have R REMOVE'd the rpart package, downloaded the source rpart_1.0-7.tar from CRAN and attempted a compilation. Everything works fine until the linking step, when I get: f77 -shared -o /users/etptupaf/R/library/rpart/libs/rpart.so anova.o anovapred.o branch.o bsplit.o choose_surg.o fix_cp.o free_tree.o gini.o graycode.o insert_split.o make_cp_list.o make_cp_table.o mysort.o nodesplit.o partition.o poisson.o poissonpred.o pred_rpart.o rpart.o rpcountup.o rplabel.o rpmatrix.o rundown.o rundown2.o s_to_rp.o s_xpred.o surrogate.o xval.o -lUfor -lfor -lFutil -lm -l...

Dear R-users, I'm working with the Rpart package and trying to understand how the procedure select the best split in the case the method "class" and the splitting index "Gini" are used. In particular I'd like to have look to the source code that works out the best split for un unordered predictor. Does anyone can suggest me which functions in the sources I should