st: Overlaying Strip Plots

[Raphael Fraser <raphael.fraser@gmail.com>]

Dear All,

I would like to execute the following command: stripplot hba2 hbf,
over(groupvar). Technically this cannot be done as I get the error:

over() may not be combined with more than one variable
r(198);

Can anyone suggest a way around this problem?

Regards,
Raphael

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