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Was enjoying Gabriel’s article Pipes in R Tutorial For Beginners and wanted call attention to a few more pipes in R (not all for beginners).

• data.table has essentially used the square bracket sequence “][” in a manner equivalent to piping in R since about 2006. Here is an example.
• The Bizarro Pipe “->.;” has always been possible in R, though I worked it out and started teaching it in 2016. And it is as quick to type as any other notation once you bind it to a keyboard shortcut.
• Lately we have been using wrapr’s “dot pipe”%.>%” under the theory that the placeholders may actually make sense as the primary objects in pipes (i.e., piping may be more about value sequencing than about function composition).
• We toyed with the idea of adding a Kleisli arrow to R, and may get back to that one day.

The Kleisli arrow Khaleesi and dragon.