search for: rf_findfun

...hat R-2.0.0 causes a problem where older versions worked OK. Rf_findVar(...) causes the following error when used to find a generic function (such as print): fun = Rf_findVar(...); R_tryEval(fun, ...); Error in function (object, ...) : Invalid generic function in usemethod Alternatively, using Rf_findFun(...) seems OK in this context, but crashes if you call it with an unexisting function name. Rf_findVar does not crash in this case, but returns an unbound value. My workaround for now is as follows: fun = Rf_findVar(Rf_install(ident), R_GlobalEnv); if (fun != R_UnboundValue) { fun...

...7fffa13a94c0) at errors.c:516 #2 0x00002aaaaab7814a in Rf_errorcall (call=0x609d78, format=0x2aaaaace4a4d "%s") at errors.c:551 #3 0x00002aaaaab78347 in Rf_error (format=0x2aaaaace42da "could not find function \"%s\"") at errors.c:578 #4 0x00002aaaaab708e5 in Rf_findFun (symbol=0xc64f20, rho=0x649fa0) at envir.c:1244 #5 0x0000000000400e0c in bar1 () at RNamedCall.c:54 #6 0x0000000000400d59 in main (argc=1, argv=0x7fffa13ab838) at RNamedCall.c:16 8<------------------------ And then stepping into line 719 generates the segfault: 8<------------------------...

...;: $SOURCES/kdeedu/cantor/src/backends/R/rserver/rserver.cpp:137: undefined reference to `R_GlobalEnv' $SOURCES/kdeedu/cantor/src/backends/R/rserver/rserver.cpp:137: undefined reference to `Rf_install' $SOURCES/kdeedu/cantor/src/backends/R/rserver/rserver.cpp:137: undefined reference to `Rf_findFun' $SOURCES/kdeedu/cantor/src/backends/R/rserver/rserver.cpp:137: undefined reference to `Rf_protect' $SOURCES/kdeedu/cantor/src/backends/R/rserver/rserver.cpp:138: undefined reference to `R_GlobalEnv' $SOURCES/kdeedu/cantor/src/backends/R/rserver/rserver.cpp:138: undefined reference t...

...mean(1:5)") it worked fine and got 3, but eval_R_command("sum(1:5)") it produced a strange number 7.41098e-323! not 15 What is the problem? By the way which is the better way to call the function in R from C++, or they are same? 1. Pass the whole expression as string to R 2. Use Rf_findFun Thank you very much! Baiyi Song CEI Dortmund University, Germany

...standardGeneric_ptr R_GlobalEnv R_set_quick_method_check Rf_install Rf_allocVector LOGICAL R_PreserveObject Rf_mkChar SET_STRING_ELT Rf_findVar R_UnboundValue VECTOR_ELT R_NamesSymbol Rf_getAttrib Rf_length STRING_ELT R_CHAR R_do_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]: Leav...

...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 DDVAL FRAME ENCLOS Rf_type2str R_PreserveObject R_...