st: funnelcompar: plotting two set of values

["Reem S. Al Omar" <mt09rsao@leeds.ac.uk>]

I need to produce a funnel plot of indirectly standardised rates using  
funnelcompar. This command works fine for one set of these rates, but  
I don't know how to use it for two sets of rates.

My original command is:
funnelcompar smr exp areas, poisson smr

I would like to include these into the command --> smr1 exp1

I realize I can plot two values using || but I have found that most  
examples on the use of these double bars are on twoway scatter plots.  
Any suggestions?

Thank you,
Reem
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