divergentColors: Divergent colour palette

In PredictiveEcology/quickPlot: A System of Plotting Optimized for Speed and Modularity

Divergent colour palette

Description

Creates a palette for the current session for a divergent-colour graphic with a non-symmetric range. Based on ideas from Maureen Kennedy, Nick Povak, and Alina Cansler.

Usage

divergentColors(
  start.color,
  end.color,
  min.value,
  max.value,
  mid.value = 0,
  mid.color = "white"
)

## S4 method for signature 'character,character,numeric,numeric'
divergentColors(
  start.color,
  end.color,
  min.value,
  max.value,
  mid.value = 0,
  mid.color = "white"
)

Arguments

start.color	Start colour to be passed to colorRampPalette.
end.color	End colour to be passed to colorRampPalette.
min.value	Numeric minimum value corresponding to start.colour. If attempting to change the colour of a RasterLayer, this can be set to minFn(RasterObject).
max.value	Numeric maximum value corresponding to end.colour. If attempting to change the colour of a RasterLayer, this can be set to maxFn(RasterObject).
mid.value	Numeric middle value corresponding to mid.colour. Default is 0.
mid.color	Middle colour to be passed to colorRampPalette. Defaults to "white".

Value

A diverging colour palette.

Author(s)

Eliot McIntire and Alex Chubaty

See Also

colorRampPalette()

Examples

divergentColors("darkred", "darkblue", -10, 10, 0, "white")

PredictiveEcology/quickPlot documentation built on July 8, 2023, 1:29 a.m.