help for statsbyfast                                       manual:  [R] statsby
                                                           dialog:  statsby    

Collect statistics for a command across a by list -- faster

statsbyfast is a direct replacement for statsby. The only difference is one of speed for large panel datasets. The syntax is the same, see help statsby

Also see

Manual: [R] statsby

Online: help for statsby


Michael Blasnik, Boston, MA michael.blasnik@verizon.net


The code for statsbyfast is a direct copy of statsby v.1.2.3 24Oct2002. Only a few lines were changed to alter the way by groups are identified -- using -in- instead of -if-. It appears that the only effect of these changes is a dramatic (nearly 10x) speed increase when working with large panel data sets. No ill side effects have been discovered.