Read the article in R News 4/1.
2010/1/27 Robert Kalicki robert.kali...@mph.unibe.ch:
Dear R community
I would like to perform some statistical analysis on a data set containing
the following items: date, time, index of observation and various
covariates.
The date and time are originally extracted in the following format:
dd.mm. and hh:mm:ss respectively. R and more precisely the function
read.table() seems to read the data properly. In a second step, I would like
to sort and subset the data according to daytime, day of the week, month,
season but I get into trouble when trying to use the built-in functions with
this format.
Which is the most convenient date and time format in R to perform such kind
of work?
Is there any specific, powerful and well documented package containing
various date and time functions?
Many thanks in advance
Best regards
___
Robert M. Kalicki, MD
Postdoctoral Fellow
Department of Nephrology and Hypertension
Inselspital
University of Bern
Switzerland
Address:
Klinik und Poliklinik für Nephrologie und Hypertonie
KiKl G6
Freiburgstrasse 15
CH-3010 Inselspital Bern
Tel +41(0)31 632 96 63
Fax +41(0)31 632 14 58
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