scale
General purpose scale for discrete data. Use it to adjust most common properties of a default scale for given aesthetic.
Parameters
Aesthetic or a list of aesthetics that this scale works with.
default = 1. Only for color scales: sets the order of colors in the scale. If -1, the order of colors is reversed.
The name of the scale - used as the axis label or the legend title. If null, the default, the name of the scale is taken from the first mapping used for that aesthetic.
A list of data values specifying the positions of ticks, or a dictionary which maps the tick labels to the breaks values.
A list of labels on ticks, or a dictionary which maps the breaks values to the tick labels.
The maximum label length (in characters) before trimming is applied.
List of data values. A vector specifying values to display with the scale and their order in guides (axis).
A numeric vector of length two giving multiplicative and additive expansion constants. The vector size == 1 => only multiplicative expand (and additive expand by default). Defaults: multiplicative = 0, additive = 0.2.
Missing values will be replaced with this value.
Specifies the format pattern for labels on the scale.
Guide to use for this scale. It can either be a string ("colorbar", "legend") or a call to a guide function (guideColorbar(), guideLegend()) specifying additional arguments. "none" will hide the guide.
Format patterns in the format parameter can be just a number format (like "d") or a string template where number format is surrounded by curly braces: "{d} cylinders". Note: the "$" must be escaped as "\$". For more info see: formats.html
Examples:
".2f" -> "12.45";
"Score: {.2f}" -> "Score: 12.45";
"Score: {}" -> "Score: 12.454789".
The type of the scale: ("identity", "color_gradient", "color_gradient2", "color_gradientn", "color_hue", "color_grey", "color_brewer", "color_cmap", "size_area"). If null (the default) and the scale is color, then "color_brewer" will be used.
Additional parameters for the specified scale type.