| lines {graphics} | 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", col = par("col"),
lty = par("lty"), ...)
x, y |
coordinate vectors of points to join. |
type |
character indicating the type of plotting; actually any of
the types as in plot. |
col |
color to use. This can be vector of length greater than one, but only the first value will be used. |
lty |
line type to use. |
... |
Further graphical parameters (see par) may
also be supplied as arguments, particularly, line type, lty and
line width, lwd. |
The coordinates can be passed to lines in a plotting structure
(a list with x and y components), a time series,
etc. See xy.coords.
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.
Becker, R. A., Chambers, J. M. and Wilks, A. R. (1988) The New S Language. Wadsworth & Brooks/Cole.
points,
plot,
and the underlying “primitive” plot.xy.
par for how to specify colors.
data(cars) # draw a smooth line through a scatter plot plot(cars, main="Stopping Distance versus Speed") lines(lowess(cars))