The link to the csv file is
http://www.filedropper.com/data_5
I use the "d" variable to create the radius:
radius <- sqrt( inv$d/ pi )
and i tried
symbols(inv$a, inv$b, circles=radius, inches=0.35, fg="white",
bg="red", xlab="aa", ylab="bb",
col=c("blue","red")[inv$c+1])
Thanks for the help.
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