[SOLVED] Proportional representation

Hi, I'm a relative newbie to RGeoS, but have been most impressed so far by its functionality and flexibility for kriging procedures and in computing spatial indices. I have two very basic questions regarding proportional representation plots that I hope you can help me with...
Firstly, I'd like to add a legend to a proportional bubble plot representing fisheries catch data, but can't seem to find a simple solution for customizing both the number of circles in the legend or for scaling the circles to the appropriate size to match those in the proportional plot. I've been playing around with the pos.legend argument, but it doesn't appear to allow much room for customization for bubble plots (see Fig. 1 below). I know I can use the 'legend' function to add an appropriate legend manually (see Fig. 2), but wonder if Is there a way around this within RGeoS?
Secondly, is there code in RGeoS to add symbols for zero values to a proportional bubble plot?
Thanks in advance!
Jed
Firstly, I'd like to add a legend to a proportional bubble plot representing fisheries catch data, but can't seem to find a simple solution for customizing both the number of circles in the legend or for scaling the circles to the appropriate size to match those in the proportional plot. I've been playing around with the pos.legend argument, but it doesn't appear to allow much room for customization for bubble plots (see Fig. 1 below). I know I can use the 'legend' function to add an appropriate legend manually (see Fig. 2), but wonder if Is there a way around this within RGeoS?
Secondly, is there code in RGeoS to add symbols for zero values to a proportional bubble plot?
Thanks in advance!
Jed