Skip to main content

Scales

Functions

• colour-mix - Blend two colours.
• expand-limits - Ensure the trained domain includes the supplied values without replacing it.
• scales - Bind scale specifications to aesthetics.

Breaks

• breaks-extended - Round breaks from the extended Wilkinson search.
• breaks-pretty - Round breaks at roughly the requested count.
• breaks-quantile - Breaks at sample quantiles of the data.
• breaks-width - Breaks spaced a fixed distance apart.

Colour and fill scales

• scale-brewer - Discrete ColorBrewer colour/fill scale.
• scale-distiller - Continuous ColorBrewer colour/fill scale (distiller).
• scale-fermenter - Binned ColorBrewer colour/fill scale (fermenter).
• scale-gradient - Two-colour continuous gradient colour/fill scale.
• scale-gradient2 - Diverging three-colour gradient colour/fill scale.
• scale-gradientn - N-colour continuous gradient colour/fill scale.
• scale-grey - Discrete greyscale colour/fill scale.
• scale-hue - Discrete evenly-spaced HCL hue colour/fill scale.
• scale-okabe-ito - Discrete Okabe-Ito colourblind-safe colour/fill scale.
• scale-steps - Binned two-colour gradient colour/fill scale (steps).
• scale-steps2 - Binned diverging three-colour gradient colour/fill scale (steps2).
• scale-stepsn - Binned N-colour gradient colour/fill scale (stepsn).
• scale-viridis-b - Binned viridis colour/fill scale.
• scale-viridis-c - Continuous viridis colour/fill scale.
• scale-viridis-d - Discrete viridis colour/fill scale.

Generic scales

• scale-binned - Binned scale that quantises a continuous variable into n-breaks bins.
• scale-continuous - Continuous scale for any continuous aesthetic.
• scale-discrete - Discrete scale for any categorical aesthetic.
• scale-identity - Identity scale: use each row’s value as the visual output directly.
• scale-manual - Manual discrete scale: supply a per-level array of output values.

Palettes

• brewer-palette - Look up a ColorBrewer palette by name.
• okabe-ito - Okabe-Ito colour-vision-deficiency-safe qualitative palette.

Position scales

• scale-date - Temporal position scale formatting axis labels as dates (x or y).
• scale-datetime - Temporal position scale formatting axis labels as datetimes (x or y).
• scale-log10 - Position scale on a base-10 log axis (x or y).
• scale-reverse - Position scale with the axis direction reversed (x or y).
• scale-sqrt - Position scale on a square-root axis (x or y).
• scale-time - Temporal position scale formatting axis labels as times (x or y).

Secondary axes

• dup-axis - Duplicate the primary axis on the opposite side of the panel.
• sec-axis - Secondary axis derived from the primary through a transformation.

Size scales

• scale-area - Area-proportional continuous size scale.
• scale-binned-area - Binned area-proportional size scale.
• scale-radius - Linear-radius continuous size scale.