Paul Tol's incandescent Sequential Color Scheme

## Usage

``````scale_colour_incandescent(
...,
reverse = FALSE,
range = c(0, 1),
discrete = FALSE,
aesthetics = "colour"
)

scale_color_incandescent(
...,
reverse = FALSE,
range = c(0, 1),
discrete = FALSE,
aesthetics = "colour"
)

scale_fill_incandescent(
...,
reverse = FALSE,
range = c(0, 1),
discrete = FALSE,
aesthetics = "fill"
)

scale_edge_colour_incandescent(
...,
reverse = FALSE,
range = c(0, 1),
discrete = FALSE,
aesthetics = "edge_colour"
)

scale_edge_color_incandescent(
...,
reverse = FALSE,
range = c(0, 1),
discrete = FALSE,
aesthetics = "edge_colour"
)

scale_edge_fill_incandescent(
...,
reverse = FALSE,
range = c(0, 1),
discrete = FALSE,
aesthetics = "edge_fill"
)``````

## Arguments

...

Arguments passed to `ggplot2::continuous_scale()`.

reverse

A `logical` scalar. Should the resulting vector of colors be reversed?

range

A length-two `numeric` vector specifying the fraction of the scheme's color domain to keep.

discrete

A `logical` scalar: should the color scheme be used as a discrete scale? If `TRUE`, it is a departure from Paul Tol's recommendations and likely a very poor use of color.

aesthetics

A `character` string or vector of character strings listing the name(s) of the aesthetic(s) that this scale works with.

## Value

A continuous scale.

## Sequential Color Schemes

If more colors than defined are needed from a given scheme, the color coordinates are linearly interpolated to provide a continuous version of the scheme.

 Palette Max. NA value `YlOrBr` 9 #888888 `iridescent` 23 #999999 `discreterainbow` 23 #777777 `smoothrainbow` 34 #666666

## References

Tol, P. (2018). Colour Schemes. SRON. Technical Note No. SRON/EPS/TN/09-002, issue 3.1. URL: https://personal.sron.nl/~pault/data/colourschemes.pdf

Other sequential color schemes: `scale_crameri_acton`, `scale_crameri_bamako`, `scale_crameri_batlow`, `scale_crameri_batlowK`, `scale_crameri_batlowW`, `scale_crameri_bilbao`, `scale_crameri_buda`, `scale_crameri_davos`, `scale_crameri_devon`, `scale_crameri_grayC`, `scale_crameri_hawaii`, `scale_crameri_imola`, `scale_crameri_lajolla`, `scale_crameri_lapaz`, `scale_crameri_nuuk`, `scale_crameri_oslo`, `scale_crameri_tokyo`, `scale_crameri_turku`, `scale_tol_YlOrBr`, `scale_tol_iridescent`, `scale_tol_smoothrainbow`

Other Paul Tol's color schemes: `scale_tol_BuRd`, `scale_tol_PRGn`, `scale_tol_YlOrBr`, `scale_tol_bright`, `scale_tol_dark`, `scale_tol_discreterainbow`, `scale_tol_highcontrast`, `scale_tol_iridescent`, `scale_tol_light`, `scale_tol_mediumcontrast`, `scale_tol_muted`, `scale_tol_nightfall`, `scale_tol_pale`, `scale_tol_smoothrainbow`, `scale_tol_sunset`, `scale_tol_vibrant`

N. Frerebeau

## Examples

``````data(faithfuld, package = "ggplot2")

ggplot2::ggplot(faithfuld, ggplot2::aes(waiting, eruptions, fill = density)) +
ggplot2::geom_raster() +
scale_fill_YlOrBr()

ggplot2::ggplot(faithfuld, ggplot2::aes(waiting, eruptions, fill = density)) +
ggplot2::geom_raster() +
scale_fill_iridescent(reverse = TRUE)

ggplot2::ggplot(faithfuld, ggplot2::aes(waiting, eruptions, fill = density)) +
ggplot2::geom_raster() +
scale_fill_smoothrainbow(range = c(0.25, 1))

``````