get_density: Compute the density of points in a grid

In caleblareau/BuenColors: Plotting utils and colors for Buenrostrolab

Description

Credit to Kamil Slowikowski See post: http://slowkow.com/notes/ggplot2-color-by-density/

Usage

get_density(x, y, n = 200)

Arguments

x	X coordinates
y	Y coordinates
n	Number of bins to divide grid

Value

A vector of densities for plotting

Examples

dat <- data.frame(
  x = c(
    rnorm(1e4, mean = 0, sd = 0.1),
    rnorm(1e3, mean = 0, sd = 0.1)
  ),
  y = c(
    rnorm(1e4, mean = 0, sd = 0.1),
    rnorm(1e3, mean = 0.1, sd = 0.2)
  )
)
dat$density <- get_density(dat$x, dat$y)
ggplot2::ggplot(dat) + geom_point(aes(x, y, color = density))

caleblareau/BuenColors documentation built on March 7, 2020, 3:34 p.m.