List of the most useful R tricks

I came across this post¬†on StackOverflow about the most useful R tricks people know. I’m sure you can pick up a trick or two in here. Some of my favorites:

  • there are head() and tail() commands that operate on data frames. They work just like the *nix counterparts.
  • making use of the with() and within() commands to operate on data frames (syntactic¬†sugar).
  • Make use of the new.env() command to pass variables by reference.
  • The sqldf library allows you to execute SQL queries on data frames.
  • Use the do.call() command to feed a list of arguments to a command (works like *nix’ xargs command)

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