R: Useful Prepanel Function for Lattice

prepanel.functions {lattice}

R Documentation

Useful Prepanel Function for Lattice

Description

These are predefined prepanel functions available in Lattice.

Usage

prepanel.lmline(x, y, ...)
prepanel.loess(x, y, span, degree, family, evaluation, ...)
prepanel.qqmathline(x, y = x, distribution = qnorm,
                    p = c(0.25, 0.75), qtype = 7,
                    groups, subscripts,
                    ...)

Arguments

`x, y`	x and y values, numeric or factor
`distribution`	quantile function for theoretical distribution. This is automatically passed in when this is used as a prepanel function in `qqmath`.
`qtype`	type of `quantile`
`p`	numeric vector of length two, representing probabilities. If used with `aspect="xy"`, the aspect ratio will be chosen to make the line passing through the corresponding quantile pairs as close to 45 degrees as possible.
`span, degree, family, evaluation`	arguments controlling the underlying `loess` smooth
`groups, subscripts`	See `xyplot`. Whenever appropriate, calculations are done separately for each group and then combined.
`...`	other arguments

Value

usually a list with components xlim, ylim, dx and dy, the first two being used to calculate panel axes limits, the last two for banking computations. The form of these components are described under xyplot. There are also several undocumented prepanel functions that serve as the default for high level functions, e.g., prepanel.default.xyplot

Author(s)