[R] Histogram Bar Spacing or Border Width

[Thomas Hopper]

Is there any way to control the spacing between bars in a histogram, or 
change the border width (I'm assuming the hist() function, though 
alternatives are welcome)? I'm interested in changing the visual spacing 
between columns in a plotted histogram.

The general effect I'm looking for can be accomplished in barplots using 
the "width=" parameter, but I have not been able to find a way to adjust 
the apparent spacing in histograms.

Thank you,

Tom Hopper