[R] POSIXct date missing "time component"

[chuck.01]

I did  not read that close enough; thanks again. 




arun kirshna wrote
> 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@

> >
> To: 

> r-help@

> 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.
> 
> 
> 
> 
> 
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