R: geom_scattermost

geom_scattermost {scattermore} | R Documentation

## geom_scattermost

### Description

Totally non-ggplotish version of `geom_scattermore()`, but faster. It avoids most of the ggplot processing by bypassing the largest portion of data around any ggplot functionality, leaving only enough data to set up axes and limits correctly. If you need to break speed records, use this.

### Usage

    geom_scattermost(
      xy,
      color = "black",
      interpolate = FALSE,
      pointsize = 0,
      pixels = c(512, 512)
    )

### Arguments

`xy` | 2-column object with data, as in `scattermore()`.
`color` | Color vector (or a single color).
`interpolate` | Default FALSE, passed to `grid::rasterGrob()`.
`pointsize` | Radius of rasterized point. Use `0` for single pixels (fastest).
`pixels` | Vector with X and Y resolution of the raster, default `c(512,512)`.

### Examples

    library(ggplot2)
    library(scattermore)
    d <- data.frame(x=rnorm(1000000), y=rnorm(1000000))
    x_rng <- range(d$x)
    ggplot() +
      geom_scattermost(cbind(d$x,d$y),
                       color=heat.colors(100, alpha=.01)
                             [1+99*(d$x-x_rng[1])/diff(x_rng)],
                       pointsize=2.5,
                       pixels=c(1000,1000),
                       interpolate=TRUE)

[Package scattermore version 0.7 Index]