hi Rusers

  I am trying to use symbos in gtools package
symbols(data1,data3,circle=data1/data3,inches=0.1,bg="lightgreen")

Now I want to give a lengend to tell the reader the meaning or magnitude of
these  circle.
How can I add these information in symbols plot just like legend in plot ?
 thank you .
-- 
TANG Jie
Email: totangjie@gmail.com
Tel: 0086-2154896104
Shanghai Typhoon Institute,China

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