dynamitePlot: Dynamite Plots
In basille/basr: Basic, but hopefully useful, functions

Description Usage Arguments Original URL Note Author(s) Examples

Creates dynamite plots.

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dynamitePlot(height, error, names.arg = NULL, significance = NA,
  ylim = c(0, maxLim), sym = FALSE, head = 0.7, lwd = par("lwd"),
  cex.sig = 1.2, ...)

`height`	A vector of values describing the heights of the rectangular bars which make up the plot.
`error`	A vector of values indicating the length of error bars.
`names.arg`	A vector of names to be plotted below each bar or group of bars. If this argument is omitted, then the names are taken from the `names` attribute of `height`.
`significance`	A character vector giving the group significance for each value.
`ylim`	Limits for the y axis. By default, `ylim` uses `c(0, maxLim)`, where `maxLim` is the maximum height + error multiplied by a factor of 1.1.
`sym`	Logical. Whether to draw lower error bars.
`head`	A numeric, which gives the approximate width of the head, relative to the bar width.
`lwd`	The line width of the error bars, a _positive_ number, defaulting to `par("lwd")` (usually 1).
`cex.sig`	The magnification to be used for significance groups relative to the current setting of `cex` (which defaults to `1`).
`...`	Arguments to be passed to `barplot`.

http://the-praise-of-insects.blogspot.ca/2012/04/dynamite-plots-in-r.html

Ben Bolker wrote an extensive discussion of the advantages and disadvantages of dynamite plots here: http://emdbolker.wikidot.com/blog:dynamite

Samuel Brown, modified by Mathieu Basille basille@ufl.edu

values <- c(1, 2, 5, 4)
errors <- c(0.25, 0.5, 0.33, 0.12)
names <- paste("Trial", 1:4)
sig <- c("a", "a", "b", "b")
dynamitePlot(values, errors)
par(mar = c(3, 5, 1, 1) + .1)
dynamitePlot(values, errors, names.arg = names, significance = sig,
    ylab = "Values", sym = TRUE, cex.lab = 1.5, cex.axis = 1.2,
    cex.names = 1.2, cex.sig = 1.5, space = c(0, 0.2, 0.8, 0.2),
    lwd = 2, head = 0, col = c(grey(0.5), "white"), border = c(NA,
        "black"))