Heat chart

Draws a grid of cells, one per pair of x and y values, shaded by how many rows fall into each.

Usage

arc_heat(.data, x, y)

Arguments

.data

Defines which data frame the chart draws its fields from.

x, y

Defines which columns form the grid.

Value

An ArcChart.

Examples

df <- data.frame(species = c("a", "a", "b"), island = c("x", "y", "x"))

arc_heat(df, species, island)