sergiocorreia/ftools: Fast Stata commands for large datasets - GitHub
https://github.com/sergiocorreia/ftools
Webftools is two things: A list of Stata commands optimized for large datasets, replacing commands such as: collapse, contract, merge, egen, sort, levelsof, etc. A Mata class ( Factor) that focuses on working with categorical variables. This class is what makes the above commands fast, and is also what powers reghdfe.
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