qq(x, data, ...)## S3 method for class 'formula':
qq(x, data, aspect = "fill",
panel = lattice.getOption("panel.qq"),
prepanel, scales, strip,
groups, xlab, xlim, ylab, ylim, f.value = NULL,
drop.unused.levels = lattice.getOption("drop.unused.levels"),
...,
lattice.options = NULL,
qtype = 7,
default.scales = list(),
subscripts,
subset)
For the formula method, a formula of the form y ~ x | g1 * g2
* ...
, where x
must be a numeric, and y
can be a
factor, shingle, character or numeric
formula
methods, an optional data frame in which
variables in the formula (as well as groups
and
subset
, if any) are to be evaluated.type
argument for the quantile
xyplot
xyplot
for non-trivial details.qq
produces a Q-Q plot of two samples. The default behaviour
of qq
is different from the corresponding S-PLUS function. See
the entry for f.value
for specifics. This and all other high level Trellis functions have several
arguments in common. These are extensively documented only in the
help page for xyplot
, which should be consulted to learn more
detailed usage.
xyplot
, panel.qq
,
qqmath
, Lattice
qq(voice.part ~ height, aspect = 1, data = singer,
subset = (voice.part == "Bass 2" | voice.part == "Tenor 1"))
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