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st: rescale grouped variables
I am having trouble creating the following variable. I am sure it is quite
easy just escaping me for the past two days.
I have 80k horse races with a finishing position ranging from 1-2 to 1-18.
I have normalized the finishing position using the following:
by raceid: get nfinpos=_N
I would like to have the normalized finishing position rescaled to -.5 to
I can not find a command that lets me do this and allows by.
any help would be appreciated.
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