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

[Martin Batholdy]

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
>