[R] values of bars in barplot

Gabor Grothendieck ggrothendieck at gmail.com
Mon May 30 15:31:42 CEST 2005

On 5/30/05, luc tardieu <luc_tardieu at yahoo.fr> wrote:
> Hi,
> I couldn't find how to have the values written on the
> top of each bar in a barplot. When using hist(), it is
> possible to use labels=T, but this option does not
> seem to exist for barplot().
> Is there a trick I could use to do that ?
> Thanks to all

Here is an example you can modify:

x <- c(44,56,34,35,44,51,55)
nams <- LETTERS[1:7]
bp <- barplot(x,horiz=T,col="light blue",xlim=c(0,60))
text(30,-1.25,xpd=NA,"Networks",cex=1.5) # x title
text(-6,4,xpd=NA,"Research Areas",cex=1.5,srt=90)  # y title
text(x,bp,x,pos=4) # place numbers to right of bars
text(0,bp,nams,cex=1.2,pos=4)  # label bars right on the bars themselves

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