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Hello, Now I would like to call R code from c++ and R code return a dynamic length of integer array. I used length(eval(VECTOR_ELT(expression,1),R_GlobalEnv)) to return the length of result array in c...
Hello everyone, I try to write a c++ code which calls embedded R and uses some of R internal functions. What I read is just lots of macro names defined in the Rinternals.h or Rdefines like R_Parse, Rf...
Hello everyone, I got a problem to change the default output on the screen and I use Xemacs ESS and R. When I happen to show a data.frame with thousands of records (type a variable name and return), the...
Hello everyone, I met a strange problem when I call R expression from C++, here is the details: I edited a function eval_R_command(); double eval_R_command(const char *funcName) { SEXP exp,e; ParseStatus status = PARSE_OK; int...
Hello everyone, I am just trying to colloct all my function into a new packages. I met two questions which hurt me so much: 1. when I use the "prompt" to help to write Rd file for a variable x...
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