search for: rpmatrix

Dear r-devel, I am mutating rpart to do calculations on trees. I am trying to extract information from the tree. However, I got a seg. fault. This is the offending line in "rpmatrix.c": deltaI[0][0] = spl->improve; (Commenting it out cures the seg fault) I would like some advice on how to debug this. I have allocated memory with calloc and deltaI[0][0] should be OK, but apparently not. thanks for your help, For those that don't have structure o...

...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 -lots -lm ld: Warning: Unresolved: S_alloc What is S_alloc? Do I have to install the full source for R in order to compile a package? I do not have root rights on this machine, which is why I went for the comp...