Paul Tol's BuRd Diverging Color Scheme
Usage
scale_colour_BuRd(
...,
reverse = FALSE,
range = c(0, 1),
midpoint = 0,
discrete = FALSE,
aesthetics = "colour"
)
scale_color_BuRd(
...,
reverse = FALSE,
range = c(0, 1),
midpoint = 0,
discrete = FALSE,
aesthetics = "colour"
)
scale_fill_BuRd(
...,
reverse = FALSE,
range = c(0, 1),
midpoint = 0,
discrete = FALSE,
aesthetics = "fill"
)
scale_edge_colour_BuRd(
...,
reverse = FALSE,
range = c(0, 1),
midpoint = 0,
discrete = FALSE,
aesthetics = "edge_colour"
)
scale_edge_color_BuRd(
...,
reverse = FALSE,
range = c(0, 1),
midpoint = 0,
discrete = FALSE,
aesthetics = "edge_colour"
)
scale_edge_fill_BuRd(
...,
reverse = FALSE,
range = c(0, 1),
midpoint = 0,
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.- midpoint
A length-one
numeric
vector giving the midpoint (in data value) of the diverging scale. Defaults to0
.- discrete
A
logical
scalar: should the color scheme be used as a discrete scale? IfTRUE
, 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.
Diverging 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 |
sunset | 11 | #FFFFFF |
nightfall | 17 | #FFFFFF |
BuRd | 9 | #FFEE99 |
PRGn | 9 | #FFEE99 |
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
See also
Other diverging color schemes:
scale_crameri_bam
,
scale_crameri_berlin
,
scale_crameri_broc
,
scale_crameri_cork
,
scale_crameri_lisbon
,
scale_crameri_roma
,
scale_crameri_tofino
,
scale_crameri_vanimo
,
scale_crameri_vik
,
scale_tol_PRGn
,
scale_tol_nightfall
,
scale_tol_sunset
Other Paul Tol's color schemes:
scale_tol_PRGn
,
scale_tol_YlOrBr
,
scale_tol_bright
,
scale_tol_dark
,
scale_tol_discreterainbow
,
scale_tol_highcontrast
,
scale_tol_incandescent
,
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
Examples
data(economics, package = "ggplot2")
ggplot2::ggplot(economics, ggplot2::aes(psavert, pce, colour = unemploy)) +
ggplot2::geom_point() +
scale_color_sunset(reverse = TRUE, midpoint = 12000)
ggplot2::ggplot(economics, ggplot2::aes(psavert, pce, colour = unemploy)) +
ggplot2::geom_point() +
scale_color_BuRd(midpoint = 9000)
ggplot2::ggplot(economics, ggplot2::aes(psavert, pce, colour = unemploy)) +
ggplot2::geom_point() +
scale_color_PRGn(midpoint = 9000, range = c(0.25, 1))