text2mapping {mappings}

Convenient shorthand for specifying mappings with text strings

Description

Convenient shorthand for specifying mappings with text strings

Usage

text2mapping(
  text,
  file = NULL,
  sep = "|",
  flip = FALSE,
  convert.na = TRUE,
  numericWherePossible = TRUE,
  ...
)

Arguments

text

A multi-line string specifying a mapping with 2 columns (see examples).

file

If text is missing, read from this file instead.

sep

Character used as column separator.

flip

If TRUE, flip the column order to To, From (default FALSE).

convert.na

If TRUE, the string "NA" will be converted to NA.

numericWherePossible

If TRUE, the mapping will return a numeric vector if the codomain contains only numbers.

...

Further arguments passed to mapping().

Value

A mapping.

Examples

f <- text2mapping("
L | Low
M | Medium
H | High
")
f(warpbreaks$tension)