pairs.default(x, labels=<<see below>>, panel=points, invert=T, ...)
NA
s) are allowed.
labels[1]
,
labels[2]
, etc., are the labels for the 1st, 2nd, etc., columns of
x
.
If supplied, the
labels vector must have length equal to ncol(x)
.
If
x
has a
dimnames
attribute, the labels are the column labels; otherwise, the default labels are derived from the name of the argument.
x
and
y
to be plotted on one panel, along with any graphical parameters that were given to
pairs
.
invert=TRUE
, the names of the variables are in the upper left to lower right diagonal panels. If
invert=FALSE
, the variable names are in the lower left to upper right diagonal.
col
and
cex
) may also be supplied as arguments to this function. See the
par
help file for more details.
Currently,
pairs.default
passes graphical parameters to both
plot
and
points
, so the parameters must be accepted by both functions.
This means, for example, that
xlim
and
ylim
are not accepted by
pairs.default
, since they are high-level parameters that can only be given to
plot
.
panel
, is produced for each pair of columns of
x
.
At the time
panel
is called, the coordinate system has already been set to accommodate the data.
Each individual scatter plot will not display points that involve
NA
s or
Inf
s; these observations may appear in other plots, however.
pairs(longley.x) # plot each panel with a smooth line pairs(longley.x, panel=function(x,y,...) { points(x,y,...); lines(lowess(x,y),...) } )