>>>>> "BR" == Barry Rowlingson <[EMAIL PROTECTED]> writes:
BR> Ah ha. Use '%w' for 'day of week': >> strptime("2003 05 06", format="%Y %U %w") BR> [1] "2003-02-02" BR> I dont have a calendar to hand to check that 2 Feb is the 6th BR> day of the 5th week.... It's not, it is the first day of the 5th week in 2003. Moreover: > strptime(paste("2003 05 0", 0:6, sep=""), format="%Y %U %w") [1] "2003-02-02" "2003-02-02" "2003-02-02" "2003-02-02" "2003-02-02" [6] "2003-02-02" "2003-02-02" I guess this behaviour is consistent with the description of %U: `%U' Week of the year as decimal number (00-53) using the first Sunday as day 1 of week 1. ?? > strptime(paste("2003 01 0", 0:6, sep=""), format="%Y %U %w") [1] "2003-01-05" "2003-01-05" "2003-01-05" "2003-01-05" "2003-01-05" [6] "2003-01-05" "2003-01-05" 5 January 2003 was the first Sunday in 2003. Cheers, Berwin ______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help