[R] Trying to understand factors

Julio Sergio juliosergio at gmail.com
Fri Mar 30 19:26:18 CEST 2012

David Winsemius <dwinsemius <at> comcast.net> writes:

> I think you need to understand indexing more than you need to  
> understand factors.
> incomes [ which(statef == "act") ]
> If you want to understand how to  programmatically access levels, then  
> you only need to follow the "See also" links on the ?factor page.

Thanks David! Your information has been very useful.


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