Re: [R] format() method

2010-04-16 Thread David Winsemius
On Apr 16, 2010, at 9:28 AM, kafkaz wrote: Hello, I use format() function to get number of the week, like this: format(tmp,'%U') Recently, I have spotted something bizarre. For example, I have such object: (index(tmp$x.delta['2009'][1:16])) [1] "2009-01-02 CET" "2009-01-09 CET" "2009-01-1

Re: [R] format() method

2010-04-16 Thread Don MacQueen
Were you expecting "01", and is that why you are puzzled? See ?strftime and the explanation of the %U format. It depends on where the first Sunday of the year happens to fall. -Don At 5:28 AM -0800 4/16/10, kafkaz wrote: Hello, I use format() function to get number of the week, like this: fo