[R] Bar charts with error bars

John Kane jrkrideau at yahoo.ca
Tue Jun 24 19:53:10 CEST 2008

Does this example help?

my.values <- c(10, 5)
err1 <- c(.5,.3)
x <- barplot(my.values, ylim=c(0,12))
arrows(x,my.values-.5 ,x,my.values+.5, code=3, angle=90, length=.1)

--- On Tue, 6/24/08, Liat RT <liroth05 at yahoo.dk> wrote:

> From: Liat RT <liroth05 at yahoo.dk>
> Subject: [R] Bar charts with error bars
> To: r-help at r-project.org
> Received: Tuesday, June 24, 2008, 11:06 AM
> I would like to add error bars to a bar chart, I have
> created in R. I am able to add error bars to a bar plot,
> but the same method does not seem to work for my bar chart
> version.
> Is there a way to add error bars to bar charts?
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