search for: r_call

...hod with the current tcltk library in R to call back an R function within the .Tcl("...") interpreter? I can't find anything documented, and I don't understand the usefulness of the .Tcl.callback() function. Browsing through the tcltk source code I found two functions R_eval and R_call that seem to take input from the .Tcl interpreter and parse them through the R evaluator. Unfortunately I get Segmentation Fault (core dump) whenever I execute .Tcl("R_eval") or .Tcl("R_call"). Also, the results from these functions appears to be lost somewher. Both functions in...

...l','<<EVENT>>',paste0("+", .Tcl.callback(evresp2))) <Tcl> > tkevent.generate(wtop,'<<EVENT>>',data='abcdef') evresp1 abcdef evresp2 abcdef <Tcl> > tkbind('all','<<EVENT>>') <Tcl> R_call 0x7f9769c764b0 %d R_call 0x7f9769c79978 %d -pd PS. To answer my own question: yes, the "+" is part of the command because this does not work: > tkbind('all','<<EVENT>>',"+", evresp2) Error in structure(.External(.C_dotTclObjv, objv), class = &q...

Here is some tcl/tk code I am trying to emulate in R. Paste the following into wish ### begin tcl code toplevel .wtop proc evresp1 { data } { puts "evresp1 $data" } proc evresp2 { data } { puts "evresp2 $data" } bind all <<EVENT>> "evresp1 %d" bind all <<EVENT>> "+evresp2 %d" ### end tcl code Now paste event generate .wtop

Hello, All! I'm new for R-devel list. And I'd like to ask some questions, maybe they will be stuped for the most part of members of the list. I need to call function which is written in C++ from R. My questions are: 1. How should I include libraries (for example, iomanip, sstream, iostream)? 2. Can I use namespace? Thanks All :) Olga