Hi Dirk, Just so that I understand. I copied the code in the RcppArmadillo section on your website and pasted and saved it. Are you saying I should change #include <RcppArmadillo> to #include <Rcpp> and #include <armadillo> ?
best, abhisek On Fri, Mar 26, 2010 at 1:40 PM, Dirk Eddelbuettel <[email protected]> wrote: > > Hi Abhisek, > > On 26 March 2010 at 12:28, Abhisek wrote: > | 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. > > Ok, that is all good. And if RcppArmadillo installed you have proper > libraries, Armadillo included. > > I think part of your problem is a misunderstanding of an issue we may not > have made particularly clear: You can't just look at FastLM() and think > your code will run like it. RcppArmadillo __does not export its classes__. > It is an implementation reference -- it gives you guidance as to how to > implement C++ packages of your own against other libraries. > > If you "just" want to use Armadillo and have Rcpp help you, look at the > installed example 'FastLM' in the Rcpp package. In other words ignore > RcppArmadillo for now. > > The example (in 0.7.10) uses an idiom we no longer like and I am about to > change that for an upcoming 0.7.11 release, but it should works as is and > just use inline -- so no messing with makefile etc. > > Try that and see how it goes and keep us posted. > > Cheers, Dirk > > > | 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 <[email protected]> > 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: > | > | > | > | abhi...@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! > | > > > -- > 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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