reshape2 (version 1.0)

add_margins: Add margins to a data frame.

Description

Add margins to a data frame.

Usage

add_margins(df, vars, margins=TRUE)

Arguments

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.

Details

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