Average Shifted Histograms — ashplot • mosaic

An ASH plot is the average over all histograms of a fixed bin width.

ashplot(
  x,
  data = data,
  ...,
  width = NULL,
  adjust = NULL,
  panel = panel.ashplot,
  prepanel = prepanel.default.ashplot
)

prepanel.default.ashplot(x, darg, groups = NULL, subscripts = TRUE, ...)

panel.ashplot(
  x,
  darg = list(),
  plot.points = FALSE,
  ref = FALSE,
  groups = NULL,
  jitter.amount = 0.01 * diff(current.panel.limits()$ylim),
  type = "p",
  ...,
  identifier = "ash"
)

Arguments

x: A formula or numeric vector.
data: A data frame.
...: Additional arguments passed to panel and prepanel functions or data, a data frame in which to find the variables used for the plot.
width: The histogram bin width.
adjust: A numeric adjustment to width. Primarily useful when width is not specified. Increasing adjust makes the plot smoother.
panel: A panel function.
prepanel: A prepanel function.
darg: a list of arguments for the function computing the ASH.
groups: as in other lattice plots
subscripts: as in other lattice prepanel functions
plot.points: One of TRUE, FALSE, "jitter", or "rug"
ref: a logical indicating whether a reference line should be displayed
jitter.amount: when plot.points="jitter", the value to use as the amount argument to jitter().
type: type argument used to plot points, if requested. This is not expected to be useful, it is available mostly to protect a type argument, if specified, from affecting the display of the ASH.
identifier: A character string that is prepended to the names of i grobs that are created by this panel function.

Examples

ashplot( ~age | substance, groups = sex, data = HELPrct)