[R] How to add marker in Stacked bar plot?

[Greg Snow]

If you want something other than an arrow (or an arrow that looks
different from those produced by the arrows function) then look at the
my.symbols function in the TeachingDemos package.

On Mon, Jul 9, 2012 at 9:37 PM, Manish Gupta <mandecent.gupta at gmail.com> wrote:
> Hi,
> I am working on stacked bar plot and want to add marker(arrow) in stacked
> bar plot.
>
> DF=data.frame(names=c("tomato", "potato", "cabbage", "sukuma-wiki",
> "terere"), freq=c(7,4,5,8,20))
> barplot(as.matrix(DF[,2]), col=heat.colors(length(DF[,2])), legend=DF[,1],
> xlim=c(0,9), width=2)
>
> http://r.789695.n4.nabble.com/file/n4635946/Screenshot.png .
>
>  Image with marker:
>
> http://r.789695.n4.nabble.com/file/n4635946/marker.png
>
> How can i add marker or arrow for particular stack in graph.
>
> Regards
>
> --
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> Sent from the R help mailing list archive at Nabble.com.
>
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-- 
Gregory (Greg) L. Snow Ph.D.
538280 at gmail.com