A generic function taking coordinates given in various ways and
joining the corresponding points with line segments.
Usage
lines(x, …)
# S3 method for default
lines(x, y = NULL, type = "l", …)
Arguments
x, y
coordinate vectors of points to join.
type
character indicating the type of plotting; actually any of
the types as in plot.default.
…
Further graphical parameters (see par) may
also be supplied as arguments, particularly, line type, lty,
line width, lwd, color, col and for type = "b",
pch. Also the line characteristics lend, ljoin
and lmitre.
Details
The coordinates can be passed in a plotting structure
(a list with x and y components), a two-column matrix, a
time series, …. See xy.coords. If supplied
separately, they must be of the same length. The coordinates can contain NA values. If a point contains
NA in either its x or y value, it is omitted from
the plot, and lines are not drawn to or from such points. Thus
missing values can be used to achieve breaks in lines. For type = "h", col can be a vector and will be recycled
as needed. lwd can be a vector: its first element will apply to lines but
the whole vector to symbols (recycled as necessary).
References
Becker, R. A., Chambers, J. M. and Wilks, A. R. (1988)
The New S Language.
Wadsworth & Brooks/Cole.
See Also
lines.formula for the formula method;
points, particularly for type %in% c("p","b","o"),
plot,
and the workhorse function plot.xy. abline for drawing (single) straight lines. par for line type (lty) specification and how to
specify colors.