R拡張

R extension

Error in dyn.load("bin/r_ifa.so") : 
unable to load shared library '/home/lab/nopu/work/ifa/bin/r_ifa.so':
dlopen(/home/lab/nopu/work/ifa/bin/r_ifa.so, 6): Symbol not found: __ZN10SaveWeight6suffixE
Referenced from: /home/lab/nopu/work/ifa/obj/R/init.o
Expected in: flat namespace
in /home/lab/nopu/work/ifa/obj/R/init.o

Makefile 上で save.o をリンクし忘れていた。

Rcpp

Rcpp x inline

> library(Rcpp)
> library(inline)
> echo <- cxxfunction( signature(x="numeric"), 'double xx=as<double>(x); return wrap(xx);', plugin="Rcpp")