[R] Bold plot axis

[john polo]

Dear UseRs,

I'd like to make the lines that the axes of my plot run on bold. I know 
"axis(side=1,lwd=3)" will make 0-max value on the axis bold, but I want 
the whole thing, from corner to corner (actually all the way around) and 
tick marks and the accompanying values for the ticks bold. In the 
default values, it's hard to see the plot when I put it into a 
powerpoint. I've got the points and line and labels, but not the square 
and ticks of the plot itself any darker or bolder. If there are other 
suggestions for making it more visible, I'd welcome those too.


John Polo