trellis.object {lattice} | R Documentation

## A Trellis Plot Object

### Description

This class of objects is returned by high level lattice functions, and is usually plotted by default by its `print` method.

### Details

A trellis object, as returned by high level lattice functions like `xyplot`, is a list with the `"class"` attribute set to `"trellis"`. Many of the components of this list are simply the arguments to the high level function that produced the object. Among them are: `as.table`, `layout`, `page`, `panel`, `prepanel`, `main`, `sub`, `par.settings`, `par.strip.text`, `strip`, `skip`, `xlab` and `ylab`. Some other typical components are:

`formula`
  the Trellis formula used in the call
`index.cond`
  list with index for each of the conditioning variables
`perm.cond`
  permutation of the order of the conditioning variables
`aspect.fill`
  logical, whether `aspect` is `"fill"`
`aspect.ratio`
  numeric, aspect ratio to be used if `aspect.fill` is `FALSE`
`call`
  call that generated the object.
`condlevels`
  list with levels of the conditioning variables
`legend`
  list describing the legend(s) to be drawn
`panel.args`
  a list as long as the number of panels, each element being a list itself, containing the arguments in named form to be passed to the panel function in that panel.
`panel.args.common`
  a list containing the arguments common to all the panel functions in `name=value` form
`x.scales`
  list describing x-scale, can consist of several other lists, paralleling panel.args, if x-relation is not `"same"`
`y.scales`
  list describing y-scale, similar to `x.scales`
`x.between`
  numeric vector of interpanel x-space
`y.between`
  numeric vector of interpanel y-space
`x.limits`
  numeric vector of length 2 or list, giving x-axis limits
`y.limits`
  similar to `x.limits`
`packet.sizes`
  array recording the number of observations in each packet

### Author(s)

Deepayan Sarkar Deepayan.Sarkar@R-project.org

### See Also

`Lattice`, `xyplot`, `print.trellis`

[Package lattice version 0.13-8 Index]