@article{Cox:196681,
      recid = {196681},
      author = {Cox, Nicholas J.},
      title = {Speaking Stata: Fun and fluency with functions},
      journal = {Stata Journal},
      address = {2011},
      number = {199-2016-2281},
      pages = {14},
      year = {2011},
      abstract = {Functions are the unsung heroes of Stata. This column is a  tour of functions that might easily be missed or  underestimated, with a potpourri of tips, tricks, and  examples for a wide range of basic problems.},
      url = {http://ageconsearch.umn.edu/record/196681},
      doi = {https://doi.org/10.22004/ag.econ.196681},
}