Message-ID: <1351652883783-4647963.post@n4.nabble.com>
Date: 2012-10-31T03:08:03Z
From: chuck.01
Subject: POSIXct date missing "time component"
In-Reply-To: <1351647362.36462.YahooMailNeo@web142605.mail.bf1.yahoo.com>
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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