R: Plot Banner (of Hierarchical Clustering)

bannerplot {cluster}

R Documentation

Plot Banner (of Hierarchical Clustering)

Description

Draws a “banner”, i.e. basically a horizontal barplot visualizing the (agglomerative or divisive) hierarchical clustering or an other binary dendrogram structure.

Usage

bannerplot(x, w = rev(x$height), fromLeft = TRUE,
           main=NULL, sub=NULL, xlab = "Height",  adj = 0,
           col = c(2, 0), border = 0, axes = TRUE, frame.plot = axes,
           rev.xax = !fromLeft, xax.pretty = TRUE,
           labels = NULL, nmax.lab = 35, max.strlen = 5,
           yax.do = axes && length(x$order) <= nmax.lab,
           yaxRight = fromLeft, y.mar = 2.4 + max.strlen/2.5, ...)

Arguments

`x`	a list with components `order`, `order.lab` and `height` when `w`, the next argument is not specified.
`w`	non-negative numeric vector of bar widths.
`fromLeft`	logical, indicating if the banner is from the left or not.
`main`, `sub`	main and sub titles, see `title`.
`xlab`	x axis label (with ‘correct’ default e.g. for `plot.agnes`).
`adj`	passed to `title(main,sub)` for string adjustment.
`col`	vector of length 2, for two horizontal segments.
`border`	color for bar border; now defaults to background (no border).
`axes`	logical indicating if axes (and labels) should be drawn at all.
`frame.plot`	logical indicating the banner should be framed; mainly used when `border = 0` (as per default).
`rev.xax`	logical indicating if the x axis should be reversed (as in `plot.diana`).
`xax.pretty`	logical or integer indicating if `pretty()` should be used for the x axis. `xax.pretty = FALSE` is mainly for back compatibility.
`labels`	labels to use on y-axis; the default is constructed from `x`.
`nmax.lab`	integer indicating the number of labels which is considered too large for single-name labelling the banner plot.
`max.strlen`	positive integer giving the length to which strings are truncated in banner plot labeling.
`yax.do`	logical indicating if a y axis and banner labels should be drawn.
`yaxRight`	logical indicating if the y axis is on the right or left.
`y.mar`	positive number specifying the margin width to use when banners are labeled (along a y-axis). The default adapts to the string width and optimally would also dependend on the font.
`...`	graphical parameters (see `par`) may also be supplied as arguments to this function.

Note

This is mainly a utility called from plot.agnes, plot.diana and plot.mona.

Author(s)

Martin Maechler (from original code of Kaufman and Rousseeuw).

Examples

data(agriculture)
bannerplot(agnes(agriculture), main = "Bannerplot")

[Package cluster version 2.1.6 Index]