xyplot2 {assist}

Extension of XYPLOT

Description

Extend xyplot to superpose one or more symbols to each panel.

Usage

xyplot2(formula, data, type = "l", ...)

Arguments

formula

a two-sided formula as accepted in xyplot

data

a list of data frames. Each component shall be able to evaluate the vatiables appearing in formula

type

a vector of characters to indicate what type of plots are to draw. Default is line.

...

any options as accepted in xyplot

Value

On each panel, several plot types, the length of data, are superposed.