| lines | R Documentation |
A generic function taking coordinates given in various ways and joining the corresponding points with line segments.
lines(x, ...) ## Default S3 method: lines(x, y = NULL, type = "l", ...)
x, y |
coordinate vectors of points to join. |
type |
character indicating the type of plotting; actually any of
the |
... |
Further graphical parameters (see |
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).
Becker, R. A., Chambers, J. M. and Wilks, A. R. (1988) The New S Language. Wadsworth & Brooks/Cole.
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.
# draw a smooth line through a scatter plot plot(cars, main = "Stopping Distance versus Speed") lines(stats::lowess(cars))
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