dplyr - dplyr: A grammar of data manipulation

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These all combine naturally with group_by() which allows you to perform any operation β€œby group”. You can learn more about them in vignette("dplyr"). As well as these single-table verbs, dplyr also provides a variety of two-table verbs, which you can learn about in vignette("two-table"). dplyr is designed to abstract over how the data is stored. That means as well as working with local data frames, you can also work with remote database tables, using exactly the same R code. Install the dbplyr package then read vignette("databases", package = "dbplyr").

http://dplyr.tidyverse.org
https://github.com/tidyverse/dplyr

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