> fhist<-hist(Simulation,plot=FALSE)
> par(mar=c(6,0,6,6))
> barplot(fhist$counts,axes=FALSE, space=0,horiz=TRUE,col="lightgray")
i) Unlike hist(), barplot() does not plot at histogram bin boundaries - you'll
have noticed that you did not specify locations for the bars and in fact can
not do so . There is no simple way of aligning a barplot with particular axis
length and locations. But there is a useful example of usig rect() to do the
job in ?pairs; look for the USJudgeRatings example and see the panel.hist
function there. It should be straightforward to adapt that for horizontal use.
ii) axes= has nothing to do with the plot limits. xlim and ylim control plot
limits. You should set ylim and the top and bottom margins to the same values
for both plots.
iii) Your png file includes a barplot with gridlines, so that cannot be the
result of the exact command you used above. If you used a different plotting
system for the bar plot the alignment would be very hard to guarantee, so stay
with base graphics for both.
S Ellison
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