  Hi!

Your example is not really easy to copy paste. Next time, try using 
dput(), this would help a lot.

I haven't tried, but I think that cex.axis is correct. The problem is in 
your call to barplot(). You have to specify xaxt="n" so that the x-axis 
won't be plotted. You then plot it with your call to axis() as you did.

You have to give in at= the x-coordinates of your ticks. I'm not sure 
how it works with barplots, just play with it. It might be something 
like at=c(1,2,3,4)

HTH,
Ivan

Le 8/4/2010 09:38, Roslina Zakaria a écrit :
> Hi all,
>
> I would like to draw a side by side bar plot.  How can I adjust the the font
> size for the x-axis?  Furthermore, I'm not sure what to write for 'at=?'.  I
> tried cex.axis and cex.lab but still fail.  Here is my data and code:
>
>> t(all)
>             0-100 100-150  150-200 200-250 250-300 300-350 350-400 400-620
> obs_data 382.000 177.000 156.0000    93.0 69.0000  45.000 14.0000 15.0000
> pre_gam  364.233 195.906 167.8515    95.1 63.2415  30.432 16.6425 17.5935
>
> bplt<- barplot(t(all), col=c("blue","yellow"),beside=TRUE,xlab="Rainfall (mm)",
>          ylab="Frequency", main="Observed and predicted, Dec-Feb
> Beec",ylim=c(0,400))
> legend("topright",c("observed","predicted"),fill=c("blue","yellow"))
> axis(1, at =? , lab =
> c("0-100","100-150","150-200","200-250","250-300","300-350","350-400","400-620"),
>   cex.axis = 0.5)
>
>
> Thank you so much for your help.
>
>
>
> 	[[alternative HTML version deleted]]
>
>
>
> ______________________________________________
> R-help@r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.

-- 
Ivan CALANDRA
PhD Student
University of Hamburg
Biozentrum Grindel und Zoologisches Museum
Abt. Säugetiere
Martin-Luther-King-Platz 3
D-20146 Hamburg, GERMANY
+49(0)40 42838 6231
ivan.calandra@uni-hamburg.de

**********
http://www.for771.uni-bonn.de
http://webapp5.rrz.uni-hamburg.de/mammals/eng/mitarbeiter.php


	[[alternative HTML version deleted]]

