Fabio Crameri's roma Diverging Colour Scheme

Usage

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

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

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

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

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

scale_edge_fill_roma(
...,
reverse = FALSE,
range = c(0, 1),
midpoint = 0,
discrete = FALSE,
aesthetics = "edge_fill"
)

Source

Crameri, F. (2021). Scientific colour maps. Zenodo, v7.0. doi:10.5281/zenodo.4491293

Arguments

...

Arguments passed to ggplot2::continuous_scale().

reverse

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

range

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

midpoint

A length-one numeric vector giving the midpoint (in data value) of the diverging scale. Defaults to 0.

discrete

A logical scalar: should the colour scheme be used as a discrete scale?

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.

Interpolation

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

Note that the default colour for NA can be overridden by passing a value to ggplot2::continuous_scale().#'

References

Crameri, F. (2018). Geodynamic diagnostics, scientific visualisation and StagLab 3.0. Geosci. Model Dev., 11, 2541-2562. doi:10.5194/gmd-11-2541-2018

Crameri, F., Shephard, G. E. & Heron, P. J. (2020). The misuse of colour in science communication. Nature Communications, 11, 5444. doi:10.1038/s41467-020-19160-7

Other diverging colour schemes: scale_crameri_bam, scale_crameri_berlin, scale_crameri_broc, scale_crameri_cork, scale_crameri_lisbon, scale_crameri_tofino, scale_crameri_vanimo, scale_crameri_vik, scale_tol_BuRd, scale_tol_PRGn, scale_tol_sunset

Other Fabio Crameri's colour schemes: scale_crameri_acton, scale_crameri_bamO, scale_crameri_bamako, scale_crameri_bam, scale_crameri_batlowK, scale_crameri_batlowW, scale_crameri_batlow, scale_crameri_berlin, scale_crameri_bilbao, scale_crameri_brocO, scale_crameri_broc, scale_crameri_buda, scale_crameri_bukavu, scale_crameri_corkO, scale_crameri_cork, scale_crameri_davos, scale_crameri_devon, scale_crameri_fes, scale_crameri_grayC, scale_crameri_hawaii, scale_crameri_imola, scale_crameri_lajolla, scale_crameri_lapaz, scale_crameri_lisbon, scale_crameri_nuuk, scale_crameri_oleron, scale_crameri_oslo, scale_crameri_romaO, scale_crameri_tofino, scale_crameri_tokyo, scale_crameri_turku, scale_crameri_vanimo, scale_crameri_vikO, scale_crameri_vik

N. Frerebeau

Examples

data(economics, package = "ggplot2")

ggplot2::ggplot(economics, ggplot2::aes(psavert, pce, colour = unemploy)) +
ggplot2::geom_point() +
scale_colour_broc(reverse = TRUE, midpoint = 12000)

ggplot2::ggplot(economics, ggplot2::aes(psavert, pce, colour = unemploy)) +
ggplot2::geom_point() +
scale_colour_berlin(midpoint = 9000)