R: Default Panel Function for xyplot

panel.xyplot {lattice}

R Documentation

Default Panel Function for xyplot

Description

This is the default panel function for xyplot. Also see panel.superpose. The default panel functions for splom and qq are essentially the same function.

Usage

panel.xyplot(x, y, type = "p",
             groups = NULL,
             pch, col, col.line, col.symbol,
             font, fontfamily, fontface,
             lty, cex, fill, lwd,
             horizontal = FALSE, ...)
panel.splom(...)
panel.qq(...)

Arguments

`x,y`	variables to be plotted in the scatterplot
`type`	character vector consisting of one or more of the following: `"p"`, `"l"`, `"h"`, `"b"`, `"o"`, `"s"`, `"S"`, `"r"`, `"a"`, `"g"`, `"smooth"`. If type has more than one element, an attempt is made to combine the effect of each of the components. The behaviour if any of the first six are included in `type` is similar to the effect of `type` in `plot` (type `"b"` is actually the same as `"o"`). `"r"` adds a regression line (same as `panel.lmline`, except for default graphical parameters), and `"smooth"` adds a lowess fit (same as `panel.loess`). `"g"` adds a reference grid using `panel.grid` in the background. `"a"` has the effect of calling `panel.linejoin`, which can be useful for creating interaction plots. The effect of several of these specifications depend on the value of `horizontal`. See `example(xyplot)` and `demo(lattice)` for examples.
`groups`	an optional grouping variable. If present, `panel.superpose` will be used instead to display each subgroup
`col, col.line, col.symbol`	default colours are obtained from `plot.symbol` and `plot.line` using `trellis.par.get`.
`font, fontface, fontfamily`	font used when `pch` is a character
`pch, lty, cex, lwd, fill`	other graphical parameters. `fill` serves the purpose of `bg` in `points` for certain values of `pch`
`...`	extra arguments, if any, for `panel.xyplot`. In most cases `panel.xyplot` ignores these. For types "r" and "smooth", these are passed on to `panel.lmline` and `panel.loess` respectively.
`horizontal`	logical. Controls orientation for certain `type`'s, e.g. one of `"h"`, `"s"` or `"S"`

Details

Creates scatterplot of x and y, with various modifications possible via the type argument. panel.qq draws a 45 degree line before calling panel.xyplot.

Note that most of the arguments controlling the display can be supplied directly to the high-level (e.g. xyplot) call.

Author(s)