R: Scatterplot with a gray background

grayplot {broman}

R Documentation

Scatterplot with a gray background

Description

Like the plot function, but using a gray background just for the plot region.

Usage

grayplot(
  x,
  y = NULL,
  ...,
  type = "p",
  hlines = NULL,
  hlines.col = "white",
  hlines.lty = 1,
  hlines.lwd = 1,
  vlines = NULL,
  vlines.col = "white",
  vlines.lty = 1,
  vlines.lwd = 1,
  xat = NULL,
  yat = NULL,
  bgcolor = "gray90",
  pch = 21,
  bg = "lightblue",
  col = "black",
  v_over_h = FALSE
)

Arguments

`x`	Coordinates of points in the plot
`y`	Coordinates of points in the plot (optional)
`...`	Optional graphics arguments
`type`	Plot type (points, lines, etc.)
`hlines`	Locations of horizontal grid lines; use `hlines=NA` to prevent horizontal grid lines
`hlines.col`	Colors of horizontal grid lines
`hlines.lty`	Line type of horizontal grid lines
`hlines.lwd`	Line width of horizontal grid lines
`vlines`	Locations of vertical grid lines; use `vlines=NA` to prevent vertical grid lines
`vlines.col`	Colors of vertical grid lines
`vlines.lty`	Line type of vertical grid lines
`vlines.lwd`	Line width of vertical grid lines
`xat`	Locations for x-axis labels; `xat=NA` indicates no labels
`yat`	Locations for y-axis labels; `yat=NA` indicates no labels
`bgcolor`	Background color
`pch`	point type
`bg`	Background color in points
`col`	Color of outer circle in points
`v_over_h`	If `TRUE`, place vertical grid lines on top of the horizontal ones.

Details

Calls plot() with type="n", then graphics::rect() to get the background, and then graphics::points(). Additional arguments you can include: mgp.x and mgp.y (like mgp, for controlling parameters of axis labels, but separate for x- and y-axis).

Value

None.

Examples


x <- rnorm(100)
y <- x+rnorm(100, 0, 0.7)
grayplot(x, y, col="slateblue", pch=16)
at <- seq(-3, 3)
grayplot(x, y, col="violetred", pch=16, hlines=at, vlines=at)
grayplot(x, col="Orchid", pch=16, bgcolor="gray80",
         hlines=seq(-4, 4, by=0.5), hlines.lwd=c(3,1),
         vlines=seq(0, 100, by=5), vlines.lwd=c(3,1,1,1))

[Package broman version 0.80 Index]