[R] POSIXct date missing "time component"

[arun]

Hi,

?as.POSIXct()
format: character string giving a date-time format as used by
          ‘strptime’.

?strptime()
format: A character string.  The default for the ‘format’ methods is
          ‘"%Y-%m-%d %H:%M:%S"’ if any component has a time component
          which is not midnight, and ‘"%Y-%m-%d"’ otherwise.  If
          ‘options("digits.secs")’ is set, up to the specified number
          of digits will be printed for seconds.

So, may be it is better to add a sec and later subtract it.

 dates.mine2<-dates.mine+1
dates.mine2[3]
#[1] "2009-05-22 00:00:01 GMT"
 dates.mine3<-dates.mine2-1
 dates.mine3[3]
#[1] "2009-05-22 GMT"
A.K.






----- Original Message -----
From: chuck.01 <CharlieTheBrown77 at gmail.com>
To: r-help at r-project.org
Cc: 
Sent: Tuesday, October 30, 2012 5:21 PM
Subject: Re: [R] POSIXct  date missing "time component"

Um, OK. 
My dates have times, they are 00:00:00 (i.e. midnight)
I'll just add a fraction of a second my dates and go with it.

Thanks for the reply. 




arun kirshna wrote
> HI,
> Please check this link
> (http://rss.acs.unt.edu/Rdoc/library/base/html/as.POSIXlt.html). 
> "Dates without times are treated as being at midnight UTC. "
> 
> May be you can try this (if it doesn't create additional problems):
>  dates.mine2<-dates.mine+1
> dates.mine2
> #[1] "2009-05-21 23:30:01 GMT" "2009-05-21 23:45:01 GMT"
> #[3] "2009-05-22 00:00:01 GMT" "2009-05-22 00:15:01 GMT"
>  dates.mine2[3]
> #[1] "2009-05-22 00:00:01 GMT"
> str(dates.mine2)
>  #POSIXct[1:4], format: "2009-05-21 23:30:01" "2009-05-21 23:45:01" ...
> A.K.





--
View this message in context: http://r.789695.n4.nabble.com/POSIXct-date-missing-time-component-tp4647932p4647939.html
Sent from the R help mailing list archive at Nabble.com.

______________________________________________
R-help at 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.