add.errorbars: Add errorbars to a barplot.
In drmjc/mjcgraphics: mjc's graphics library

Description Usage Arguments Author(s)

Highly recommend you use errorbarplot instead, since you need to provide the same arguments as for errorbarplot that affect the bar size and spacing to this function since the placing of the error bars in the middle of the bars is impossible to achieve otherwise.

  add.errorbars(height, width = 1, space = NULL,
    beside = FALSE, horiz = FALSE, errors = NULL,
    errors.col = par("fg"), errors.width = 0.15,
    errors.type = c("+", "-"), prespace = 0)

`height`	see `errorbarplot`
`width`	see `errorbarplot`
`space`	see `errorbarplot`
`beside`	see `errorbarplot`
`horiz`	see `errorbarplot`
`...`	see `errorbarplot`
`errors`	the object containing errors (eg standard deviation) with the SAME size/dimension as height.
`errors.col`	the colour of the errors bars
`errors.width`	the proportion of width that the ticks should be at the top/bottom or lhs/rhs of the error tick
`errors.type`	plot the errors bars going into and outof the bar itself (eg just "+" will plot the tick pointing out of the bar)
`prespace`	mostly used for interal processing when height and errors is a `matrix`.