RE: st: RE: coding problem: looping through a list of ID's

["Nick Cox" <n.j.cox@durham.ac.uk>]

Well, not quite. If you know either age or date of visit, but not both,
you should be able to impute them directly. 

Nick Cox

The observations with missing values for age and/or height are useless
for your purposes. You might as well -drop- them. 


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