search for: tickdata

.....I get a list which is not sorted...for example: "01.02.2011" (February 1st) comes before "02.01.2011" (January 2nd). My approach was to transform the column date into POSIXct by using strptime (btw: I dont care for the time information): src$date <- strptime(tickdata$date, "%d.%m.%Y") The data frame then looks like this: date time open close 01-02-2011 09:00:00 1000 1200 01-02-2011 09:05:02 1200 1203 ... 02-01-2011 10:01:21 1029 1110...