TY - EJOUR AB - any problems in data management center on relating values to values in other observations, either within a dataset as a whole or within groups such as panels. This column reviews some basic Stata techniques helpful for such tasks, including the use of subscripts, summarize, by:, sum(), cond(), and egen. Several techniques exploit the fact that logical expressions yield 1 when true and 0 when false. Dividing by zero to yield missings is revealed as a surprisingly valuable device. AU - Cox, Nicholas J. DA - 2011 DA - 2011 DO - dm0055 DO - 10.22004/ag.econ.180084 DO - Other DO - doi EP - 314 EP - 305 ID - 180084 IS - 2 JF - Stata Journal KW - Research Methods/ Statistical Methods KW - data management KW - panels KW - subscripting KW - summarize KW - by KW - sum() KW - cond() KW - egen KW - logical expressions L1 - https://ageconsearch.umn.edu/record/180084/files/sjart_dm0055.pdf L2 - https://ageconsearch.umn.edu/record/180084/files/sjart_dm0055.pdf L4 - https://ageconsearch.umn.edu/record/180084/files/sjart_dm0055.pdf LA - eng LK - https://ageconsearch.umn.edu/record/180084/files/sjart_dm0055.pdf N2 - any problems in data management center on relating values to values in other observations, either within a dataset as a whole or within groups such as panels. This column reviews some basic Stata techniques helpful for such tasks, including the use of subscripts, summarize, by:, sum(), cond(), and egen. Several techniques exploit the fact that logical expressions yield 1 when true and 0 when false. Dividing by zero to yield missings is revealed as a surprisingly valuable device. PY - 2011 PY - 2011 SP - 305 T1 - Speaking Stata: Compared with ... TI - Speaking Stata: Compared with ... UR - https://ageconsearch.umn.edu/record/180084/files/sjart_dm0055.pdf VL - 11 Y1 - 2011 T2 - Stata Journal ER -