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

[Uwe Ligges]

On 10.07.2012 05:37, Manish Gupta 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.

See ?arrow

Uwe Ligges



>
> Regards
>
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