vec_rescale: Rescale vector to have a specified minimum and maximum

In teunbrand/ggvctrcoords: Coordinates and scales for ggplot2 using the vctrs package

Description

Mimicking rescale, but more type stable.

Usage

vec_rescale(x, to, from, ...)

## Default S3 method:
vec_rescale(x, to = c(0, 1), from = range(x, na.rm = TRUE, finite = TRUE), ...)

## Default S3 method:
vec_rescale.default(
  x,
  to = c(0, 1),
  from = range(x, na.rm = TRUE, finite = TRUE),
  ...
)

Arguments

x	A vector to manipulate
to	An output range
from	The input range
...	Possible other arguments to downstream functions

Details

The default method should in theory be type stable as long as x can be cast without loss as numeric and vice versa and has a type stable range function. Will throw an error upon lossy casts, unless wrapped in vctrs::allow_lossy_cast.

Value

A vector of the same length as x

Examples

# Note that 1:10 returns integers, not doubles
vec_rescale(as.numeric(1:10))
vctrs::allow_lossy_cast(vec_rescale(1:10))

teunbrand/ggvctrcoords documentation built on Jan. 12, 2020, 6:25 p.m.