On Sat, Aug 21, 2010 at 3:01 AM, Gabor Grothendieck <ggrothendieck at gmail.com> wrote: > On Fri, Aug 20, 2010 at 3:47 PM, Hall, Ken (CDC/OSELS/NCPHI) > <kha6 at cdc.gov> wrote: I have also added some slightly simpler sqldf solutions here: http://code.google.com/p/sqldf/#Example_16._Moving_Average