lattice (version 0.3-1)

lattice-Internal: Miscellaneous Functions used within Lattice

Description

These functions are used by various Lattice routines.

Usage

Rows(x, which)
extend.limits(lim, length = 1, prop = 0.07) 
lpretty(lim)
.lattice.print.more
cupdate(index, maxim)
do.breaks(endpoints, nint)
ldrop.levels(x, subset)
compute.layout(...)
construct.scales(...)
limits.and.aspect(...)
trellis.skeleton(...)
prepanel.default.bwplot(...)
prepanel.default.levelplot(x, y, wx, wy, subscripts, ...)
prepanel.default.cloud(distance, xlim, ylim,
        zlim, zoom = 1, rot.mat = rot.mat, 
        aspect = aspect,...)
prepanel.default.densityplot(...)
prepanel.default.histogram(...)
prepanel.default.parallel(...)
prepanel.default.qq(...)
prepanel.default.qqmath(...)
prepanel.default.splom(...)
prepanel.default.tmd(...)
prepanel.default.xyplot(x, y, type, ...)

Arguments

length

desired length of the resulting interval, with center given by the center of lim. Used for relation="sliced".

prop

Proportion by which to extend limits.

x,y

numeric, factor or shingle.

subset

indices to keep.

which

logical ?

lim

length 2 numeric

index

current values of levels

maxim

max values of levels

endpoints

see histogram

nint

see histogram

distance, xlim, ylim, zlim, zoom, rot.mat,aspect

see panel.cloud

wx, wy, subscripts

see panel.levelplot

type

type argument as in panel.xyplot

...

other arguments

synopsis

lpretty(x, ...) construct.scales(draw = TRUE, tck = 1, tick.number = 5, cex = 1, rot = FALSE, at = FALSE, labels = FALSE, col = FALSE, log = FALSE, alternating = TRUE, relation = "same", x = NULL, y = NULL, ...) compute.layout(layout, cond.max.level, skip = FALSE) limits.and.aspect(prepanel.default.function, prepanel = NULL, have.xlim = FALSE, xlim = NULL, have.ylim = FALSE, ylim = NULL, x.relation, y.relation, panel.args.common = list(), panel.args = list(), aspect, nplots, ...) trellis.skeleton(as.table = FALSE, aspect = "fill", between = list(x = 0, y = 0), key = NULL, page = NULL, main = NULL, sub = NULL, par.strip.text = list(), skip = FALSE, strip = strip.default, xlab = NULL, ylab = NULL, panel, ...)

Details

Some of these functions are indigenous, some are counterparts of functions in the S-Plus Trellis Displays library.

lpretty is used instead of pretty (which gives very non-pretty results in some cases, particularly densityplot). banking is a crude banking function used when aspect="xy" in xyplot. It just orders the absolute slopes and returns a value which when adjusted by the panel scale limits will make the median of the above absolute slopes a 45 degree line. (Confused ? see code.)

ldrop.levels returns an object of the same class as x, with the redundant factor/shingle levels dropped, if any. Used to avoid empty panels when using the subset argument.

.lattice.print.more is a global logical to handle the more argument in print.trellis.

See Also

Lattice