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Update Rcpp.Rmd - added comment to insert new rcpp code chunk #1691

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Expand Up @@ -344,7 +344,7 @@ bench::mark(

NB: If you run this code, you'll notice that `meanC()` is much faster than the built-in `mean()`. This is because it trades numerical accuracy for speed.

For the remainder of this chapter C++ code will be presented stand-alone rather than wrapped in a call to `cppFunction`. If you want to try compiling and/or modifying the examples you should paste them into a C++ source file that includes the elements described above. This is easy to do in RMarkdown: all you need to do is specify `engine = "Rcpp"`.
For the remainder of this chapter C++ code will be presented stand-alone rather than wrapped in a call to `cppFunction`. If you want to try compiling and/or modifying the examples you should paste them into a C++ source file that includes the elements described above. This is easy to do in RMarkdown: all you need to do is inserting a `Rcpp` chunk or `r` chunk and specify `engine = "Rcpp"`, which are equivalent to `sourceCpp`.

### Exercises {#exercise-started}

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