search for: rf_definevar

While poking around the C++ code in the dplyr package I ran across the idiom Rf_defineVar(symbol, R_UnboundValue, environment) to [sort of] remove 'symbol' from 'environment' Using it makes the R-level functions objects(), exists(), and get() somewhat inconsistent and I was wondering if that was intended. E.g., use SHLIB to make something from the following C code tha...

Hi, I am trying to remove key-value pairs from an environments (using C). While adding seems straightforward with `Rf_defineVar()`, I cannot find a function to remove objects from a given environment. Would anyone know if there is such a function ? Best, Laurent

On 8/6/2009 4:11 PM, Marilyn & Rich Short wrote: > Hello, > > I'm having a problem in R. The R GUI is crashing with a message to > contact Microsoft for the solution. I've contacted Microsoft and they > are of no help. Below is a distilled set of code that will cause the > crash. As you will see, there are two do-loops within which is a "load" >

...o_slot Rf_asChar PRINTNAME Rf_isNull CAR CDR R_data_class Rf_isFunction Rf_findFun SETCAR Rf_eval INTEGER CLOENV Rf_findVarInFrame Rf_isSymbol ENCLOS SYMVALUE Rf_asLogical R_MissingArg Rf_isPrimitive do_set_prim_method BODY R_deferred_default_method PREXPR PRENV R_DotsSymbol DDVAL R_set_prim_method Rf_defineVar R_do_slot_assign mkdir ../../../../library/methods/libs make[5]: Leaving directory `/tmp_mnt/net/fire/s/fire/1/richardb/Tru64/src/library/methods/src' make[4]: Leaving directory `/tmp_mnt/net/fire/s/fire/1/richardb/Tru64/src/library/methods/src' make[4]: Entering directory `/tmp_mnt/net/fir...

...bug2 20051104 debug2 debug3 debug4 debug5 20051107 debug2 20051108 debug2 debug3 debug4 debug5 20051109 debug2 20051110 debug2 debug3 ==11423== Invalid read of size 1 ==11423== at 0x80F1390: SETCAR (memory.c:2626) ==11423== by 0x80C1617: R_HashSet (envir.c:219) ==11423== by 0x80C2CC1: Rf_defineVar (envir.c:1261) ==11423== by 0x814F6BE: RestoreToEnv (saveload.c:2043) ==11423== by 0x8150465: do_loadFromConn2 (saveload.c:2358) ==11423== by 0x80F95FF: do_internal (names.c:1097) ==11423== by 0x80CB320: Rf_eval (eval.c:431) ==11423== by 0x80CCAC1: do_begin (eval.c:1107) ==11423==...

...ethods_list_dispatch.o method_meta_data.o slot.o ld: Warning: Unresolved: Rf_error R_NilValue Rf_VectorToPairList Rf_duplicate Rf_protect Rf_substitute Rf_unprotect TYPEOF Rf_NewEnvironment R_GlobalEnv R_UnboundValue R_MissingArg R_DotsSymbol R_NamesSymbol Rf_allocVector Rf_asChar Rf_asLogical Rf_defineVar Rf_eval Rf_findVar Rf_findVarInFrame Rf_findFun Rf_getAttrib Rf_install Rf_isEnvironment Rf_isFunction Rf_isNull Rf_isObject Rf_isPrimitive Rf_isSymbol Rf_length Rf_mkChar ATTRIB R_CHAR STRING_ELT SET_STRING_ELT VECTOR_ELT LOGICAL INTEGER TAG CAR CDR MISSING SETCAR BODY CLOENV PRINTNAME SYMVALUE DD...