R Utilities: Copy of an Rcpp File
Copies the Rcpp function into the working directory.
cxxfunction.copy(cppfct, name)
cppfct |
Rcpp function |
name |
Name of the output Rcpp function to be generated |
Eddelbuettel, D. & Francois, R. (2011). Rcpp: Seamless R and C++ integration. Journal of Statistical Software, 40(8), 1-18. doi: 10.18637/jss.v040.i08
## Not run: ############################################################################# # EXAMPLE 1: Rcpp code logistic distribution ############################################################################# library(Rcpp) library(inline) # define Rcpp file code1 <- " // input array A Rcpp::NumericMatrix AA(A); // Rcpp::IntegerVector dimAA(dimA); int nrows=AA.nrow(); int ncolumns=AA.ncol(); Rcpp::NumericMatrix Alogis(nrows,ncolumns) ; // compute logistic distribution for (int ii=0; ii<nrows; ii++){ Rcpp::NumericVector h1=AA.row(ii) ; Rcpp::NumericVector res=plogis( h1 ) ; for (int jj=0;jj<ncolumns;jj++){ Alogis(ii,jj)=res[jj] ; } } return( wrap(Alogis) ); " # compile Rcpp code fct_rcpp <- inline::cxxfunction( signature( A="matrix"), code1, plugin="Rcpp", verbose=TRUE ) # copy function and save it as object 'calclogis' name <- "calclogis" # name of the function cxxfunction.copy( cppfct=fct_rcpp, name=name ) # function is available as object named as name Reval( paste0( name, " <- fct_rcpp " ) ) # test function m1 <- outer( seq( -2, 2, len=10 ), seq(-1.5,1.5,len=4) ) calclogis(m1) ## End(Not run)
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