## ----eval = TRUE-------------------------------------------------------------- Rcpp::cppFunction(' double demo_rnorm() { Rcpp::Timer timer("mytimes"); timer.tic(); double x = rnorm(1, 1)[0]; timer.toc(); return(x); }', depends = "rcpptimer" ) demo_rnorm() print(mytimes) ## ----eval = TRUE, echo = FALSE------------------------------------------------ rm(list = ls()) ## ----eval = TRUE-------------------------------------------------------------- Rcpp::cppFunction(' double demo_rnorm() { Rcpp::Timer timer; timer.autoreturn = false; timer.tic("rnorm"); double x = rnorm(1, 1)[0]; timer.toc("rnorm"); return(x); }', depends = "rcpptimer" ) demo_rnorm() print(ls()) ## ----eval = TRUE-------------------------------------------------------------- Rcpp::cppFunction(' DataFrame demo_rnorm() { Rcpp::Timer timer; timer.autoreturn = false; timer.tic("rnorm"); double x = rnorm(1, 1)[0]; timer.toc("rnorm"); DataFrame times = timer.stop(); return(times); }', depends = "rcpptimer" ) demo_rnorm() ## ----eval = TRUE, echo = FALSE------------------------------------------------ rm(list = ls()) ## ----eval = TRUE-------------------------------------------------------------- Rcpp::cppFunction(' double demo_rnorm(bool return_timings = false, const char* timings_name = "times") { Rcpp::Timer timer(timings_name); timer.autoreturn = return_timings; timer.tic("rnorm"); double x = rnorm(1, 1)[0]; timer.toc("rnorm"); return(x); }', depends = "rcpptimer" ) demo_rnorm(return_timings = FALSE) ls() demo_rnorm(return_timings = TRUE) ls() demo_rnorm(return_timings = TRUE, timings_name = "my_times") ls()