[R] confused about x-coordinates and bar charts

Jay Pfaffman pfaffman at relaxpc.com
Fri Jul 18 20:41:52 CEST 2003

Thanks for all the help on my previous histogram problem.  I intend to
summarize the solutions back to the list Real Soon Now, but first, I've
got another problem.

I've made a bar chart that reports means.  I'd like to put the number
of observations on top of each bar.  Here's what I've got:

        ylab="Mean Engagement Rating",
        xlab="Comment Category",
        main="All Engagement Ratings",

for (i in 1:7){

This would seem to do the trick, but the numbers are not centered over
the bars.  They're a bit to the right on the bars on the left and
almost right on the bars on the right.  I don't understand why the
scale is not the same.  

Thanks again for your help.

Jay Pfaffman                           pfaffman at relaxpc.com
+1-415-821-7507 (H)                    +1-415-812-5047 (M)

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