lattice (version 0.17-25)

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,
                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 giving breakpoints along the range of z. See levelplot for details.

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

A logical flag, specifying whether contour lines should be drawn.

region

A logical flag, 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, or a function to produce a vecor of colors, to be used if region=TRUE. Each interval defined by at is assigned a color, so the number of colors actually used is one less than the length of a

alpha.regions

numeric scalar controlling transparency of facets

Details

The same panel 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, level.colors, contourLines