reshape2: add_margins – R documentation

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add_margins

Add margins to a data frame.

Rownames are silently stripped. All margining variables will be converted to factors.

add_margins(df, vars, margins = TRUE)

`df`	input data frame
`vars`	a list of character vectors giving the variables in each dimension
`margins`	a character vector of variable names to compute margins for. `TRUE` will compute all possible margins.

Flexibly Reshape Data: A Reboot of the Reshape Package

v1.4.4

MIT + file LICENSE

Authors

Hadley Wickham <h.wickham@gmail.com>

Initial release