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A comment on The R language, for programmers. Parent comment

Re:The R language, for programmers by craigching on Thursday December 04, 2014 @01:48PM (#8700912)
> If you're learning R, learn to use dplyr for data manipulation

I had been learning data.table, but I really like dplyr's % operator and the compositional functions better. I think I'm going to make the move to dplyr.

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Re:The R language, for programmers by arun_sriniv on Friday December 05, 2014 @06:26AM (#8703946)
We're in the process of adding more detailed vignettes illustrating more clearly the philosophy behind data.table's `i, j, by`. Should make things lot easier for beginners - https://github.com/Rdatatable/data.table/issues/944

data.table is not just fast, but is also more memory efficient - we want to highlight in the vignettes as well.

And timings are quite relevant even on 10 million rows: https://gist.github.com/arunsrinivasan/db6e1ce05227f120a2c9

For much larger data, check the project page: https://github.com/Rdatatable/data.table/wiki/Benchmarks-%3A...

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Re:The R language, for programmers by hadley on Thursday December 04, 2014 @11:44PM (#8703044)
FWIW The performance difference is insignificant unless your working with >>10 of millions of rows.
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Re:The R language, for programmers by craigching on Friday December 05, 2014 @11:28AM (#8705282)
I thought dplyr (note, not plyr, dplyr is the next iteration of plyr implemented mostly in native code) was pretty much as fast as data.table.
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