[R] fill prob. in legend

Jeremy Z Butler jerrytheshrub at hotmail.com
Mon Feb 24 02:31:02 CET 2003

I'm trying to construct a legend which has four lines of text and associated 
symbols. The first two symbols need to be normal lines which vary only in 
colour. The second two symbols should have filled boxes. How do I suppress 
the fill boxes in the first two lines?

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