tree
.
text(x, y, ...) text.default(x, y, labels=seq(along=x), cex=par("cex"), col=par("col"))
text.default
,
x
and
y
are the coordinates of the points.
The coordinates can be given by two arguments that are vectors, or by a single
argument
x
which is
a univariate time series,
a complex vector,
a matrix with 2 columns, or
a list containing components named
x
and
y
. In the latter case,
labels
must be given in name=value form.
labels[i]
is plotted at each point
(x[i],y[i])
;
however, if
labels
is a logical vector of the same length as
x
and
y
, the
value
i
is plotted at each
(x[i],y[i])
for which
labels[i]
is
TRUE
.
Missing values (NA) are allowed.
par
) for each text string.
This may be a vector of more than one element.
par
) for each text string.
This may be a vector of more than one element.
adj
(see
par
)
determines whether the text is right, left or center justified.
Labels are not plotted at any point with a missing x or y
coordinate or a missing label.
If the lengths of
x
,
y
,
labels
,
cex
, and
col
are not identical, the shorter vectors are reused cyclically.
The
text
function can be used after
plot(x,y,type="n")
which
draws axes and the surrounding box without plotting the data.
The strings in the
labels
argument will be truncated to their first
511 characters.
plot(x, y, type="n") text(x, y) #plot i at (x[i], y[i]) plot(x1, f1, type="l"); lines(x2, f2) text(.3, .7, "function 1"); text(.3, .4, "function 2")