'GROUPFUNCTION': Stata module to replace several basic collapse functions

Description:

groupfunction Replaces several collapse functions (mean, sum, variance, first, max, min). The command is several orders of magnitude faster than collapse.

Authors:

Paul Corral
pcorralrodas@worldbank.org
World Bank

Minh Cong Nguyen
mnguyen3@worldbank.org
World Bank

João Pedro Azevedo
jazevedo@worldbank.org
World Bank
personal page

Authors:

Paul Corral
pcorralrodas@worldbank.org
World Bank

Minh Cong Nguyen
mnguyen3@worldbank.org
World Bank

João Pedro Azevedo
jazevedo@worldbank.org
World Bank
personal page