The holiday function in the timeDate package looks up holiday dates, e.g. holiday(2012,"USThanksgivingDay") bit.ly/uG6J1C #rstats
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Replying to @RLangTip
@RLangTip: Or RcppBDT: 'getNthDayOfWeek(Thu, fourth, Nov, 2012)' to get the 4th Thursday in November -- using Boost Date_Time via #Rcpp

Nov 22, 2012 · 4:23 PM UTC