Skip to content

values of bars in barplot

4 messages · luc tardieu, Gabor Grothendieck, Joerg van den Hoff +1 more

luc tardieu
# 
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

Luc
Gabor Grothendieck
#
On 5/30/05, luc tardieu <luc_tardieu at yahoo.fr> wrote:
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
Joerg van den Hoff
#
luc tardieu wrote:
something like:


x <- 1:3
#ensure some free space above the bar and remember midpoints:
bmp <- barplot(x, ylim = c(0, 1.1*max(x)))

text(bmp, x + .03*max(x), x)


should do.
PIKAL Petr
#
On 30 May 2005 at 15:19, luc tardieu wrote:

            

      
      
      
    

        
Hallo

            

      
      
      
    

        
Value:

     A numeric vector (or matrix, when 'beside = TRUE'), say 'mp',
     giving the coordinates of _all_ the bar midpoints drawn, useful
     for adding to the graph.


e.g.

            

      
      
      
    

        
[1] 5 7 1 9 5

            

      
      
      
    

        
HTH
Petr

            

      
      
      
    

        

      
      
    

        
Petr Pikal
petr.pikal at precheza.cz