[R] R and C++ compared with only C++

Andrew C. Ward s195404 at student.uq.edu.au
Tue Jul 22 04:19:47 CEST 2003

As always, it depends on your priorities and motivation. If
that extra 10% is important and if you can be bothered
writing the C++, then putting the whole thing into C++ may
be worth it. If not then you could let R deal with the
input and output.


Andrew C. Ward

CAPE Centre
Department of Chemical Engineering
The University of Queensland
Brisbane Qld 4072 Australia
andreww at cheque.uq.edu.au

Quoting Francisco J Molina <fjmolina at lbl.gov>:

> My computer is a pentium 4 running at 2.4 GHz.
> My R is 1.7.1
> I have written a program in R that calls C++. The program
> spends most of the
> time in C++ ( > 90% ). R basically deals with output and
> input.
> How slower can this be compared with the program I would
> get from rewriting
> everything in C++?
> Thank you.
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