On Thu, Apr 29, 2010 at 11:44 AM, Carol Gao <carol.gaox@gmail.com> wrote:

> I tried your new lines with some random time, it seems to be working
> perfectly well, just as follows:
> > z <- strptime("20/2/06 23:16:16.683", "%d/%m/%y %H:%M:%OS")
> > modifyList(z, list(hour = z$hour + 11))
> [1] "2006-02-21 10:16:16"
>
> Now it seems that I have some problem with my Time vector. As Time was
> created by the following code:
> Time <- paste(anz$Date.G.,anz$Time.G.)
> The original data looks like the following with each row correspond to
> each.
> Date.G.
> 01-DEC-2008
> 01-DEC-2008
> 02-DEC-2008
> 03-DEC-2008
> 04-DEC-2008
> ...
>
> Time.G.
> 00:03:57.398
> 00:04:03.778
> 00:04:38.639
> 00:04:38.639
> 00:04:38.639
> ...
> Somehow, I can't read Time in  strptime(Time,"%d-%b-%Y %H:%M:%OS"). Do you
> know what was wrong with it?
>

Why not?

anz <- data.frame(Date.G = c("01-DEC-2008",
"01-DEC-2008","02-DEC-2008","03-DEC-2008","04-DEC-2008"),
              Time.G =
c("00:03:57.398","00:04:03.778","00:04:38.639","00:04:38.639","00:04:38.639"))

Time <- strptime(paste(anz$Date.G, anz$Time.G), '%d-%b-%Y %H:%M:%S')
modifyList(Time, list(hour = Time$hour + 11))



>
> Sorry for asking such questions, as I am quite new to R. Thanks for helping
> me out.
>
> Carol
>
>
>
>
> On Fri, Apr 30, 2010 at 12:16 AM, Henrique Dallazuanna <wwwhsd@gmail.com>wrote:
>
>> Ops,
>>
>> I sent to you a wrong code, try this indeed:
>>
>> Time2 <- strptime(Time, '%d-%b-%Y %H:%M:%S')
>>
>> modifyList(Time2, list(hour = Time2$hour + 11))
>>
>> On Thu, Apr 29, 2010 at 11:14 AM, Carol Gao <carol.gaox@gmail.com> wrote:
>>
>>> Appreciate it! I was trying on the code you sent, then some error codes
>>> turned up:
>>>
>>> The first line runs ok, the second line:
>>>
>>>
>>> > modifyList(Time2, list(hour = Time2$hour + 11))
>>> Error in Time2$hour : $ operator is invalid for atomic vectors
>>>
>>> The time format I used for reading the Time vector is "%d-%b-%Y
>>> %H:%M:%OS". Should I change any code above?
>>>
>>> Carol
>>>
>>>
>>>
>>>
>>> On Thu, Apr 29, 2010 at 11:47 PM, Henrique Dallazuanna <wwwhsd@gmail.com
>>> > wrote:
>>>
>>>> Try this:
>>>>
>>>> Time2 <- gsub("\\.*", "", tolower(Time))
>>>> modifyList(Time2, list(hour = Time2$hour + 11))
>>>>
>>>>
>>>> On Thu, Apr 29, 2010 at 10:33 AM, Carol Gao <carol.gaox@gmail.com>wrote:
>>>>
>>>>> Hi there,
>>>>>
>>>>> I've got a column vector in a csv file as follows, and I need to add 11
>>>>> hours to each of them. Is there a way that I can do it? (The actual
>>>>> file
>>>>> size is much bigger than this.)
>>>>>
>>>>> Time
>>>>> "01-DEC-2008 00:00:28.611"
>>>>> "01-DEC-2008 00:00:43.155"
>>>>> "01-DEC-2008 00:01:06.677"
>>>>> "01-DEC-2008 00:01:06.677"
>>>>> "01-DEC-2008 00:01:06.677"
>>>>> "01-DEC-2008 00:01:06.919"
>>>>> "01-DEC-2008 00:23:46.452"
>>>>> "02-DEC-2008 00:03:17.646"
>>>>> "02-DEC-2008 00:03:17.652"
>>>>> "03-DEC-2008 00:15:11.485"
>>>>> "03-DEC-2008 00:18:44.652"
>>>>> "03-DEC-2008 00:22:17.447"
>>>>>
>>>>> Thank you in advance.
>>>>>
>>>>> Cheers,
>>>>>
>>>>> Carol
>>>>>
>>>>>        [[alternative HTML version deleted]]
>>>>>
>>>>> ______________________________________________
>>>>> R-help@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.
>>>>>
>>>>
>>>>
>>>>
>>>> --
>>>> Henrique Dallazuanna
>>>> Curitiba-Paraná-Brasil
>>>> 25° 25' 40" S 49° 16' 22" O
>>>>
>>>
>>>
>>
>>
>> --
>> Henrique Dallazuanna
>> Curitiba-Paraná-Brasil
>> 25° 25' 40" S 49° 16' 22" O
>>
>
>


-- 
Henrique Dallazuanna
Curitiba-Paraná-Brasil
25° 25' 40" S 49° 16' 22" O

	[[alternative HTML version deleted]]

