stat_contour: Computer contours (iso-levels) of 3d data.
In hadley/layers: Layer related components from ggplot2

Description Usage Arguments Value Examples

Computer contours (iso-levels) of 3d data.

1 2	stat_contour(bins = NULL, binwidth = NULL, breaks = NULL, na.rm = FALSE)

`bins`	number of contours (specify one of bins, binwidth, breaks)
`binwidth`	distance between each contour (specify one of bins, binwidth, breaks)
`breaks`	exact locations of contours (specify one of bins, binwidth, breaks)

level

if (require("reshape2")) {
  volcano3d <- melt(volcano)
  names(volcano3d) <- c("x", "y", "z")
  volcano3d <- add_group(volcano3d)
  contours <- stat_transform(stat_contour(), volcano3d)
  geom_plot(geom_path(), contours)
}