[Rcpp-devel] RcppArmadillo error

[Abhisek]

Hi Dirk,

I downloaded the stuff just last friday so it should be the latest version
of Rcpp as well as Armadillo.  I used install.packages() for Rcpp and
RcppArmadillo.  Armadillo is 0.9.4.  Im using xubuntu karmic koala.

i also had some problem using Armadillo which I posted on the Armadillo
discussion board.  Conrad got back to me.  Here is the discussion:
https://sourceforge.net/apps/phpbb/arma/viewtopic.php?f=1&t=4

so it may be that armadillo is the problem but im really not sure.

Many thanks
Abhisek

On Fri, Mar 26, 2010 at 12:17 PM, Dirk Eddelbuettel <edd at debian.org> wrote:

>
> (resending, this time to list I omitted last time, sorry. --Dirk)
>
> On 26 March 2010 at 11:10, Abhisek wrote:
> | Hi,
> |
> | Ive been trying to make RcppArmadillo work using the example file
> (fastLM).
> | I copied and pasted the code and saved it as RcppArmadilloEg.cpp (not to
> use
> | fastLM but to figure out how to work RcppArmadillo).  Then i tried using
> the
> | command R CMD SHLIB RcppArmadilloEg.cpp but an error came up saying that
> | RcppArmadillo.h not found.
> |
> | So i tried doing a symbolic link from /usr/local/include to the directory
> | where RcppArmadillo.h and RcppArmadilloDefines.h is stored.  I also did a
> | symbolic link analogously for RcppArmadillo.so.  When i ran R CMD SHLIB
> | again I got the following error:
> |
> | abhisek at shieks:~/Desktop/Personal/Test$ R CMD SHLIB RcppArmadilloEg.cpp
> | g++ -I/usr/share/R/include
> | -I/home/abhisek/R/i486-pc-linux-gnu-library/2.10/Rcpp/lib -fpic  -g -O2
> -c
> | RcppArmadilloEg.cpp -o RcppArmadilloEg.o
>
> So far so good:  one -I for R as usual, one for Rcpp.
>
> | In file included from
> | /home/abhisek/R/i486-pc-linux-gnu-library/2.10/Rcpp/lib/RcppCommon.h:215,
> |                  from
> | /home/abhisek/R/i486-pc-linux-gnu-library/2.10/Rcpp/lib/Rcpp.h:28,
> |                  from RcppArmadilloEg.cpp:1:
> |
> /home/abhisek/R/i486-pc-linux-gnu-library/2.10/Rcpp/lib/Rcpp/internal/wrap.h:
> | In function ‘SEXPREC*
> Rcpp::internal::wrap_dispatch_unknown_iterable(const
> | T&, Rcpp::traits::false_type) [with T = arma::Col<double>]’:
> |
> /home/abhisek/R/i486-pc-linux-gnu-library/2.10/Rcpp/lib/Rcpp/internal/wrap.h:491:
> | instantiated from ‘SEXPREC* Rcpp::internal::wrap_dispatch_unknown(const
> T&,
> | Rcpp::traits::false_type) [with T = arma::Col<double>]’
> |
> /home/abhisek/R/i486-pc-linux-gnu-library/2.10/Rcpp/lib/Rcpp/internal/wrap.h:509:
> | instantiated from ‘SEXPREC*
> | Rcpp::internal::wrap_dispatch_unknown_importable(const T&,
> | Rcpp::traits::false_type) [with T = arma::Col<double>]’
> |
> /home/abhisek/R/i486-pc-linux-gnu-library/2.10/Rcpp/lib/Rcpp/internal/wrap.h:526:
> | instantiated from ‘SEXPREC* Rcpp::internal::wrap_dispatch(const T&,
> | Rcpp::traits::wrap_type_unknown_tag) [with T = arma::Col<double>]’
> |
> /home/abhisek/R/i486-pc-linux-gnu-library/2.10/Rcpp/lib/Rcpp/internal/wrap.h:541:
> | instantiated from ‘SEXPREC* Rcpp::wrap(const T&) [with T =
> | arma::Col<double>]’
> | /home/abhisek/R/i486-pc-linux-gnu-library/2.10/Rcpp/lib/Rcpp/Named.h:54:
> | instantiated from ‘Rcpp::Named::Named(const std::string&, const T&) [with
> T
> | = arma::colvec]’
> | RcppArmadilloEg.cpp:19:   instantiated from here
> |
> /home/abhisek/R/i486-pc-linux-gnu-library/2.10/Rcpp/lib/Rcpp/internal/wrap.h:394:
> | error: cannot convert ‘const arma::Col<double>’ to ‘SEXPREC*’ in
> | initialization
> | make: *** [RcppArmadilloEg.o] Error 1
> |
> |
> | could someone provide some advice?
>
> Which Rcpp version do you have installed?
>
> Which Armadillo version do you have installed?
>
> I have not tried the free-floating direct compile you try here.  Maybe the
> defines for RcppArmadillo that we use are missing here -- hard to say.
>
> Could you try to create your own little package but copying the
> RcppArmadillo
> files, changes DESCRIPTION to what you do and changes the FastLM code in
> C++
> and R?
>
> Dirk
>
> --
>  Registration is open for the 2nd International conference R / Finance 2010
>  See http://www.RinFinance.com for details, and see you in Chicago in
> April!
>
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