tidyr (version 0.4.1)

unite: Unite multiple columns into one.

Description

Convenience function to paste together multiple columns into one.

Usage

unite(data, col, ..., sep = "_", remove = TRUE)

Arguments

data

A data frame.

col

(Bare) name of column to add

...

Specification of columns to unite. Use bare variable names. Select all variables between x and z with x:z, exclude y with -y. For more options, see the select documentation.

sep

Separator to use between values.

remove

If TRUE, remove input columns from output data frame.

See Also

separate(), the complement.

unite_ for a version that uses regular evaluation and is suitable for programming with.

Examples

library(dplyr)
unite_(mtcars, "vs_am", c("vs","am"))

# Separate is the complement of unite
mtcars %>%
  unite(vs_am, vs, am) %>%
  separate(vs_am, c("vs", "am"))

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