esp wrote: > > For the function as defined above using 'sapply' >> spot[,1] > 01/09/2009 01/09/2009 00:00:01 01/09/2009 00:00:02 01/09/2009 > 00:00:03 > 1251759600 1251759601 1251759602 > 1251759603 > > This was unexpected - it seems to have displayed the datetimestamp values > both as per my defined character-string representation and as numeric > values. >
One mystery solved (now I appreciate the existence and utility of the 'str' and 'ls.str' functions), the apparent dual dateformat and numeric results from my initial algorithm were in fact the associated characterstring and numeric parts of a "Named num" object. Hence for example: > str(spot$DATETIME) Named num [1:4] 1.25e+09 1.25e+09 1.25e+09 1.25e+09 - attr(*, "names")= chr [1:4] "01/09/2009" "01/09/2009 00:00:01" "01/09/2009 00:00:02" "01/09/2009 00:00:03" > names(spot$DATETIME) [1] "01/09/2009" "01/09/2009 00:00:01" "01/09/2009 00:00:02" "01/09/2009 00:00:03" -- View this message in context: http://www.nabble.com/Date-Time-Stamp-input-method-for-user-specific-formats-tp25757018p25770184.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
