openSchemes: List available colour schemes in 'openair'

In openair: Tools for the Analysis of Air Pollution Data

List available colour schemes in openair

Description

This function returns a table of the available colour schemes in openair, along with their type (sequential, diverging, or qualitative) and the maximum number of colours available for that scheme (where applicable). This can be useful for users to explore the available schemes and to check which schemes can provide a certain number of colours.

Usage

openSchemes(palette_type = c("seq", "div", "qual"), n = NULL)

Arguments

palette_type	A character vector specifying which types of palettes to include in the output. Options are "seq" for sequential, "div" for diverging, and "qual" for qualitative. Multiple options can be selected (e.g., c("seq", "div")). All three are returned by default.
n	An optional whole number to filter the schemes by their maximum number of colours. Only schemes that can provide at least n colours will be included in the output. This only applies to qualitative schemes, as sequential and diverging schemes can be interpolated to any number of colours.

Author(s)

Jack Davison

See Also

Other colour functions: colourOpts(), openColours()

openair documentation built on May 20, 2026, 5:07 p.m.