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Re: st: RE: How to merge individual records to groups in a large dataset, w/o using collapse
It seems Merge is only to combine datasets with a
shared variable, while what I want is actually
aggregatre individual reacords into groups.
--- Nick Cox <email@example.com> wrote:
> Dear Crazy, or dear Allon:
> On the face of it, a merge problem calls for the
> Allon Crazy
> > I am wondering how to merge individual records to
> > groups for an extremely large dataset (20 million
> > observations), without using collapse. I tred
> > collapse, but my computer would not offer enough
> > memeory for it because the dataset is too huge. I
> > tried egen, but egen does not take sampling
> > into consideration. I am wondering whether there
> > another way or other options.
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