fuse: Fuse multiple columns into one

In paulponcet/lplyr: 'dplyr' Verbs for Lists and Other Verbs for Data Frames

Description

fuse is a more flexible version of unite from package tidyr.

Usage

fuse(.data, col, ..., fun = concat0, remove = TRUE)

fuse_(.data, col, from, fun = concat0, remove = TRUE)

## S3 method for class 'data.frame'
fuse_(.data, col, from, fun = concat0, remove = TRUE)

## S3 method for class 'tbl_df'
fuse_(.data, col, from, fun = concat0, remove = TRUE)

Arguments

.data	A tbl or data.frame
col	character. (Bare) name of column to add
...	Specification of columns to fuse.
fun	function. The function to be applied (concat0 by default).
remove	logical. If TRUE (the default), remove input columns from output data frame.
from	character. A vector of the names of columns to fuse.

Note

This function has been inspired by the issue raised at https://github.com/tidyverse/tidyr/issues/203.

See Also

unite and unite_ from package tidyr;

concat0 from package bazar.

Examples

df <- data.frame(x = c(NA, "a", NA), 
                 y = c("b", NA, NA))
fuse(df, "z", x, y)

# To be compared with: 
tidyr::unite(df, "z", x, y, sep = "")
# The same
fuse(df, "z", x, y, fun = function(x) concat0(x, na.rm = FALSE))

paulponcet/lplyr documentation built on May 24, 2019, 10:32 p.m.