Hi,

R-2.13 introduced the byte code compiler package 'compiler' [1], which can be used to precompile the R code of a package at installation time (using the ByteCompile field in the Description file or '--byte-compile' with R CMD INSTALL). I have been using this lately with my own packages, and had some notable improvements (and also did not find a case where it decreased the performance). I was wondering if anyone has extensive experience with this. Specifically, are there good reasons not to use this by default for packages?

Best wishes
Julian

[1] http://dirk.eddelbuettel.com/blog/2011/04/12/

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