embedding R in c++ (Qt) application

Peter,

| Hi Dirk,
| 
| I've had a closer look now at Rcpp and I've found a lot
| of constructors and functions that take SEXPs as input - so the way back from
| R to C++ seems clear to me.
| 
| However, I don't know how to pass my data from c++ to R . I've managed
| to have the embedded R evaluate commands (construct vectors and do  
| something with them) with the help of the official manual,
| but I couldn't assign for instance an RcppVector to an SEXP or any of  
| these constructed vectors ...

I think you are halfway there. You have an embedded R session, you can assign
variables and evaluate commands. You also see RCpp and how to pass data
out. I think all I did at that point was to invert a few of those functions
to pass data in ... and there you have it in your embedded R session.

Hope this helps, Dirk

Three out of two people have difficulties with fractions.