[Rcpp-devel] Errors while compiling a script (seems to be related to Fortran)

[Avraham Adler]

I'm no expert here, but Armadillo does have built in QR decomposition <
http://arma.sourceforge.net/docs.html#qr> and sorting <
http://arma.sourceforge.net/docs.html#sort> routines. Perhaps you can use
those and dispense with the need for importing anything else?

Avi


On Thu, Sep 4, 2014 at 3:30 AM, Xiao He <praguewatermelon at gmail.com> wrote:

> Hi Dirk,
>
> Thanks for the comments. Suppose if I were to go with your third
> suggestion, do you happen to have any examples of RcppArmadillo calling
> SEXP functions that I can refer to?
>
> In the past, I tried (1) putting the set of MASS functions in a separate
> MASS.cpp file, (2) creating a header file MASS.h, and (3) making the main
> script file call the MASS functions by doing include "MASS.h". But the same
> errors were still present.
>
> Thank you again for your help!
>
> -Xiao
>
>
>
> On Wed, Sep 3, 2014 at 9:52 PM, Dirk Eddelbuettel <edd at debian.org> wrote:
>
>>
>> Xiao,
>>
>> On 3 September 2014 at 21:39, Xiao He wrote:
>> | Hi Kevin,
>> |
>> | Yes, those extra includes are there because some functions taken from
>> the MASS
>> | package need these them.
>> |
>> | I rearranged the includes by placing #include <RcppArmadillo.h> before
>> the ones
>> | below, and was able to reduce the number of errors from 7 to 4.
>> |
>> | #include <R_ext/Linpack.h>
>> | #include <R_ext/Applic.h>
>> | #include <R_ext/Utils.h>
>> |
>> | Is it possible for you to take a look at the script below, which
>> includes those
>> | functions from MASS that require these includes? I am not sure what
>> else needs
>> | to be done. The errors seem to have to do with the fortran library.
>> |
>> | https://www.dropbox.com/s/ukjml693ta8r8gi/test2.cpp?dl=0
>>
>> I just glanced at this for a few secs. Quick comments
>>
>> -- Remove R.h (pulled in via Rcpp which is pulled in from RcppArmadillo)
>>
>> -- think about using sort and QR from (Rcpp)Armadillo: because that is
>> why we
>>    use Armadillo for
>>
>> -- if you can't make the error go away in one file, create two files:
>>    * one higher-level with RcppArmadillo calling
>>    * another lower-level SEXP-only set of functions with the code you
>>      borrowed from MASS
>>
>> Dirk
>>
>> --
>> http://dirk.eddelbuettel.com | @eddelbuettel | edd at debian.org
>>
>
>
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