add_col: Add a colum to a data frame

In hadley/hadcol: Hadley's utilities for adding columns

Description

Similar to cbind, but allows you to specify the positoin. Will replac existing variable with the same name if present.

Usage

add_col(x, name, value, where = ncol(x) + 1)

Arguments

x	A data frame
name	Name of variabl to create. If variable of that name already exists
value	Values to insert.
where	position to insert. Use 1 to insert on LHS. RHS.

Examples

df <- data.frame(x = 1:5)
add_col(df, "y", runif(5))
add_col(df, "y", runif(5), where = 1)

add_col(df, "x", 5:1)

hadley/hadcol documentation built on May 31, 2019, 10:47 p.m.