Hi
you stepped on a difference between POSIXct and POSIXlt
Details
There are two basic classes of date/times. Class "POSIXct" represents
the (signed) number of seconds since the beginning of 1970 as a
***numeric vector***. Class "POSIXlt" is a ***named list*** of
vectors representing
so you need to change your POSIXlt - named list to POSIXct by
as.POSIXct(your vector)
HTH
Petr
Maybe it could be useful to give some kind of warning into the help
page of strptime e.g.
Be aware of length of an objects created by strptime as POSIXlt
class. It is always 9. See Details section of DateTimeClasses.
On 2 Mar 2007 at 12:33, S?rgio Nunes wrote:
Date sent: Fri, 2 Mar 2007 12:33:46 +0000
From: "S?rgio Nunes" <snunes at gmail.com>
To: r-help at stat.math.ethz.ch
Subject: [R] Error in length of vector ?
> Hi,
>
> I'm having a weird result with the length() function:
>
> >a
> [... omited ...]
> [9994] NA "2003-12-03 16:37:00"
"2002-06-26
> 18:43:00" [9997] "2005-07-04 04:00:00" "2007-02-16
22:09:00"
> "2007-02-24 15:49:00" [10000] NA
>
> > length(LastModified)
> [1] 9
>
> > length(c(LastModified))
> [1] 9
>
> I was expecting to get "10000" as an answer.
> I'm trying to bind two vector, and I keep getting the error -
"number
> of rows of result is not a multiple of vector length". Thus I tested
> length and got this value.
>
> Any hint?
>
> Thanks in advance,
> S?rgio Nunes
>
> ______________________________________________
> R-help at stat.math.ethz.ch 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.
Petr Pikal
petr.pikal at precheza.cz