scale_category: Scale category

In anthonynorth/rdeck: Deck.gl Widget

Scale category

Description

Creates a categorical scale. Categorical scales map input values defined in the set of levels to colours (or values). Input values not in the set of levels are assigned unmapped_color (or unmapped_value).

Usage

scale_color_category(
  col,
  palette = scales::brewer_pal("div"),
  unmapped_color = "#000000",
  levels = NULL,
  unmapped_tick = NULL,
  tick_format = NULL,
  col_label = "{.col}",
  legend = TRUE
)

scale_category(
  col,
  range = 0:1,
  unmapped_value = 0,
  levels = NULL,
  col_label = "{.col}",
  legend = TRUE
)

Arguments

col	<name | string> The name of the column containing data to be scaled. Must be a valid input to rlang::ensym(); either a named column (non-standard evaluation), a string. Supports tidy-eval.
palette	<color|function> The colour palette of the colour scale. Must be a: vector of RGBA hex colours, a palette generator function, taking a length parameter, or a palette ramp created from scales::colour_ramp() A scales::colour_ramp() interpolator is created from the input palette.
unmapped_color	<color> The colour representing unmapped levels.
levels	<factor | character | logical> The category levels. If NULL, will be populated from input data. The order of the levels is determined by levels() for factors & unique() otherwise. If there are more levels than colours (or range values), the palette (or range) is interpolated.
unmapped_tick	<string> The tick label of the unmapped category. If not NULL and legend == TRUE, the unmapped category will appear at the bottom of the legend.
tick_format	<function> A label function taking a vector of ticks returning formatted ticks.
col_label	<string | function> A template string or a label function for customising the column name in the legend. if col_label is a string, {.col} may be used to represent the col name if col_label is a function, the function must take a single argument: the col name
legend	<boolean> Indicate whether the legend should be displayed for this scale.
range	<numeric> The output range of the numeric scale. Must be length >= 2. A stats::approxfun() interpolator is created from the input range.
unmapped_value	<number> The value representing unmapped levels.

See Also

Other scales: rescale_center(), rescale_diverge(), scale_identity(), scale_linear(), scale_log(), scale_power(), scale_quantile(), scale_quantize(), scale_symlog(), scale_threshold()

anthonynorth/rdeck documentation built on Aug. 11, 2024, 1:40 p.m.