plot-api / jetbrains.letsPlot.geom / geom_bar

geom_bar

class geom_bar : BarAesthetics, CountStatAesthetics, LayerBase

Display a bar chart which makes the height of the bar proportional to the number of observed variable values, mapped to x axis.

Parameters

data - dictionary or pandas DataFrame, optional. The data to be displayed in this layer. If None, the default, the data is inherited from the plot data as specified in the call to lets_plot.

stat - string, optional. The statistical transformation to use on the data for this layer, as a string. Supported transformations: "identity" (leaves the data unchanged), "count" (counts number of points with same x-axis coordinate), "bin" (counts number of points with x-axis coordinate in the same bin), "smooth" (performs smoothing - linear default)

position - string, optional. Position adjustment, either as a string ("identity", "stack", "dodge", ...), or the result of a call to a position adjustment function.

x - x-axis value (this values will produce cases or bins for bars).

y - y-axis value (this value will be used to multiply the case's or bin's counts).

alpha - transparency level of a layer Understands numbers between 0 and 1.

color - (colour) color of a geometry lines. Can be continuous or discrete. For continuous value this will be a color gradient between two colors.

fill - color of geometry filling.

size - line width. Defines bar line width.

mapping - set of aesthetic mappings. Aesthetic mappings describe the way that variables in the data are mapped to plot "aesthetics".

Constructors

<init>

Display a bar chart which makes the height of the bar proportional to the number of observed variable values, mapped to x axis.

geom_bar(data: Map<*, *>? = null, stat: StatOptions = Stat.count(), position: PosOptions = Pos.stack, showLegend: Boolean = true, sampling: SamplingOptions? = null, x: Double? = null, y: Double? = null, alpha: Number? = null, color: Any? = null, fill: Any? = null, width: Double? = null, size: Number? = null, weight: Double? = null, mapping: BarMapping.() -> Unit = {})

Properties

alpha

transparency level of a layer Understands numbers between 0 and 1.

val alpha: Number?

color

(colour) color of a geometry lines. Can be continuous or discrete. For continuous value this will be a color gradient between two colors.

val color: Any?

fill

color of geometry filling.

val fill: Any?

size

line width. Defines bar line width.

val size: Number?

weight

val weight: Double?

width

val width: Double?

x

x-axis value (this values will produce cases or bins for bars).

val x: Double?

y

y-axis value (this value will be used to multiply the case's or bin's counts).

val y: Double?

Functions

seal

fun seal(): Options

Extension Functions

toSpec

fun Layer.toSpec(): MutableMap<String, Any>