R: Basic Internal Plot Function

plot.xy {graphics}

R Documentation

Basic Internal Plot Function

Description

This is the internal function that does the basic plotting of points and lines. Usually, one should rather use the higher level functions instead and refer to their help pages for explanation of the arguments.

Usage

plot.xy(xy, type, pch = par("pch"), lty = par("lty"),
        col = par("col"), bg = NA,
        cex = 1, lwd = par("lwd"), ...)

Arguments

`xy`	A four-element list as results from `xy.coords`.
`type`	1 character code: see `plot.default`. `NULL` is accepted as a synonym for `"p"`.
`pch`	character or integer code for kind of points, see `points.default`.
`lty`	line type code, see `lines`.
`col`	color code or name, see `colors`, `palette`. Here `NULL` means colour 0.
`bg`	background (fill) color for the open plot symbols 21:25: see `points.default`.
`cex`	character expansion.
`lwd`	line width, also used for (non-filled) plot symbols, see `lines` and `points`.
`...`	further graphical parameters such as `xpd`, `lend`, `ljoin` and `lmitre`.

Details

The arguments pch, col, bg, cex, lwd may be vectors and may be recycled, depending on type: see points and lines for specifics. In particular note that lwd is treated as a vector for points and as a single (first) value for lines.

cex is a numeric factor in addition to par("cex") which affects symbols and characters as drawn by type "p", "o", "b" and "c".

Examples

points.default # to see how it calls "plot.xy(xy.coords(x, y), ...)"