Description Usage Arguments Details Value Author(s) See Also

These are predefined prepanel functions available in Lattice.

1 2 3 4 5 6 7 8 9 10 | ```
prepanel.lmline(x, y, ...)
prepanel.qqmathline(x, y = x, distribution = qnorm,
probs = c(0.25, 0.75), qtype = 7,
groups, subscripts,
...)
prepanel.loess(x, y, span, degree, family, evaluation,
horizontal = FALSE, ...)
prepanel.spline(x, y, npoints = 101,
horizontal = FALSE, ...,
keep.data = FALSE)
``` |

`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 |

`qtype` |
type of |

`probs` |
numeric vector of length two, representing probabilities. If used
with |

`span, degree, family, evaluation` |
Arguments controlling the
underlying |

`horizontal, npoints` |
See documentation for corresponding panel function. |

`keep.data` |
Ignored. Present to capture argument of the same
name in |

`groups, subscripts` |
See |

`...` |
Other arguments. These are passed on to other functions
if appropriate (in particular, |

All these prepanel functions compute the limits to be large enough to contain all points as well as the relevant smooth.

In addition, `prepanel.lmline`

computes the `dx`

and
`dy`

such that it reflects the slope of the linear regression
line; for `prepanel.qqmathline`

, this is the slope of the line
passing through the quantile pairs specified by `probs`

. For
`prepanel.loess`

and `prepanel.spline`

, `dx`

and
`dy`

reflect the piecewise slopes of the nonlinear smooth.

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
prepanel functions that serve as the default for high level functions,
see `prepanel.default.xyplot`

Deepayan Sarkar Deepayan.Sarkar@R-project.org

Lattice, `xyplot`

, `banking`

,
`panel.loess`

, `panel.spline`

.

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