lattice (version 0.17-12)

panel.levelplot: Default Panel Function for levelplot

Description

This is the default panel function for levelplot.

Usage

panel.levelplot(x, y, z, 
                subscripts,
                at = pretty(z),
                shrink,
                labels = NULL,
                label.style = c("mixed", "flat", "align"),
                contour = FALSE,
                region = TRUE,
                col = add.line$col,
                lty = add.line$lty,
                lwd = add.line$lwd,                ...,
                col.regions = regions$col,
                alpha.regions = regions$alpha)
panel.contourplot(...)

Arguments

x, y, z

variables defining the plot

subscripts

integer vector indicating what subset of x, y and z to draw

at

numeric vector specifying breakpoints for change in colors

shrink

either a numeric vector of length 2 (meant to work as both x and y components), or a list with components x and y which are numeric vectors of length 2. This allows the rectangles to be scaled proportional to the z-value. The specification ca

labels

either a logical scalar indicating whether the labels are to be drawn, or a character or expression vector giving the labels associated with the at values. Alternatively, labels can be a list with the following compo

label.style

controls how label positions and rotation are determined. A value of "flat" causes the label to be positioned where the contour is flattest, and the label is not rotated. A value of "align" causes the label to be dr

contour

logical, specifying whether contour lines should be drawn

region

logical, specifying whether inter-contour regions should be filled with the appropriate color

col, lty, lwd

graphical parameters for contour lines

...

extra parameters

col.regions

a vector of colors used if region=TRUE. Usually a subset of the colors are used, the exact number being one more than the length of at. These are chosen to be roughly equally spaced along col.regions.

alpha.regions

numeric scalar controlling transparency of facets

Details

The same function is used for both levelplot and contourplot (which differ only in default values of some arguments). panel.contourplot is a simple wrapper to panel.levelplot.

When contour=TRUE, the contourLines function is used to calculate the contour lines.

See Also

levelplot, contourLines