change confidence interval line length in barplot2 (plotrix package)

-----Original Message-----
From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-
project.org] On Behalf Of Martin Batholdy
Sent: Tuesday, January 22, 2013 2:42 PM
To: r-help at r-project.org
Subject: Re: [R] change confidence interval line length in barplot2
(plotrix package)

Ok, I have to apologize,
I confused the packages.

It's the function barplot2 from the gplots package!

 It calls itself an extenstion of barplot2 and has a ci.lwd argument.

Might save you the time of doing what I thought might be needed,
hacking te code.

Unfortunately ci.lwd controls the thickness of the line but not the
horizontal width.



On Jan 22, 2013, at 21:24 , David Winsemius <dwinsemius at comcast.net>
wrote:

On Jan 22, 2013, at 10:28 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)

When I did an sos::findFn("barplot2") search to locate the "real"

`barplot2` O alos noted in the same package (gplots) a function named
`ooplot`. It calls itself an extenstion of barplot2 and has a ci.lwd
argument. Might save you the time of doing what I thought might be
needed, hacking te code.

--
David Winsemius
Alameda, CA, USA