[R] change confidence interval line length in barplot2 (plotrix package)

[Rolf Turner]

There does not appear to be any such function as barplot2 in
the current version (3.4-5) of the plotrix package.  Moreover
I can find no reference to such a function in the "NEWS" for
plotrix.

     cheers,

         Rolf Turner

On 01/23/2013 07:28 AM, Martin Batholdy wrote:
> Hi,
>
> is there any way to change the width of the horizontal line of confidence intervals
> in the barplot2 function in the plotrix package (independent of the width of the bars)?
>
>
> example code:
>
> library(plotrix)
> # Example with confidence intervals and grid
> hh <- t(VADeaths)[, 1]
> mybarcol <- "gray20"
> ci.l <- hh * 0.85
> ci.u <- hh * 1.15
> mp <- barplot2(hh, beside = TRUE,
>          col = c("lightblue", "mistyrose",
>                  "lightcyan", "lavender"),
>          legend = colnames(VADeaths), ylim = c(0, 20),
>          main = "Death Rates in Virginia", font.main = 4,
>          sub = "Faked 95 percent error bars", col.sub = mybarcol,
>          cex.names = 1.5, plot.ci = TRUE, ci.l = ci.l, ci.u = ci.u)
>