R help - Oct 2006 - Turn off border on barplot

I was wondering if there was any way to completely remove the borders 
around each bar when using the barplot function.  I understand how to 
change the color of the border (border="white"), but I need the border
to be invisible so I can plot many skinny bars right next to each other 
with only the bar's color visible.

Thanks,
Frank

-- 
Frank McCown
Old Dominion University
http://www.cs.odu.edu/~fmccown/

On Thu, 2006-10-26 at 16:13 -0400, Frank McCown wrote:
> I was wondering if there was any way to completely remove the borders 
> around each bar when using the barplot function.  I understand how to 
> change the color of the border (border="white"), but I need the
border
> to be invisible so I can plot many skinny bars right next to each other 
> with only the bar's color visible.
> 
> Thanks,
> Frank
You can try:

 # Set line type to blank
 # See ?par
 # First save current value
 lty.o <- par("lty")

 par(lty = 0)

 # Also set space to 0, rather
 # than default 0.2, if needed for more room
 barplot(1:10, space = 0)

 # Reset to old value
 par(lty = lty.o)

Depending upon the "look" you need, setting space to 0 may be
sufficient
and still allow you to enable a border.

HTH,

Marc Schwartz