d CHANGELOG d d psmatch2: d d v2.0.5, 12apr2004 d - noreplace: make sure that all treated are matched by looping back d - repair ties d d v2.0.4, 11mar2004 d - repair bug in plugin which caused missing _weight with 1-to-many d - exit if noreplace with mahal d - add a qui in a couple of places d d v2.0.3, 1feb2004 d - put treated without matches off support with noreplace d d v2.0.2, 26jan2004 d - 1st version for SSC d - v1.2.4 fixes missing brace in trim d d v2.0.0, 22jan2004 d - plugin for nearest neighbor, -psmatch2- now requires stata 8.2 d - v1.2.3 for stata7 now demoted to -psmatch27- d d v1.2.3, 16jan2004 d - 1.1.3 update made 1-to-1(k) very slow, this is now addressed d - add spline matching (first smooth using spline then nearest n) d - exit if noreplace with 1-to-many d d v1.2.2, 8jan2004 d - radius used bwidth instead of caliper, repair d d v1.2.1, 5dec2003 d - check only for duplicate pscore vals in controls on metric pscore d d v1.2.0, 3dec2003 d - sort, stable not in stata7 :-( do something else d d v1.1.9, 2dec2003 d - bysort is not sort stable: better is sort, stable and then by d d v1.1.8, 30nov2003 d - divide _outcome by _nn if neighbor==1 & ties d d v1.1.7, 19nov2003 d - add option add when both varlist and mahal() are given d - check for pscore with option common d - have psmatch2 run without outvars again d d v1.1.6, 31oct2003 d - missed 1 (last) comparison obs when contructing counterfactual d - fix wrong sign of atu d d v1.1.4, 20oct2003 d - fix output with option ate using nearest neighbor d d v1.1.3, 6sep2003 d - add option 'ties' for nearest neighbor matching: match all tied neigbors d - normalize weights with k-nn matching d - fix message for tied pscores d d v1.1.2, 13aug2003 d - gsort is not sort stable; work around it d d v1.1.0, 16jul2003 d - change: always keep _support (handy with bootstrappin') d - change: _weight = 1 instead of . for treated obs when estimating att onlys d - bug: with option ate only atu would display d d d pstest: d d v0.4.0 13feb2004 d - add some tests d d v0.3.5 05nov2003 d - tempname for scalars d d d Dialog d d v1.0.1, 19nov2003 d - Disable common support with Mahal and no added pscore d - TODO: allow adding non-estimated pscore with Mahal d