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datacountry
2007 Dec 07
2
Same regression per sub-group: apply?
Dear helpers,
I've come up with what is probably a simple problem, but I cannot
find the solution. I have a data-set containing survey-data from
several countries. What I want to do is to perform some regression
analyses, for each country separately. The question is, how to do
this nicely (thus without repeating the same syntax with another
`subset' argument).
I thought of the