[R-SIG-Finance] xts NA date for

[Dan Potter]

Thank you Wolfgang.  On my machine sessionInfo shows I am using xts
version 0.8-2 -
I think it is the latest one, see
http://cran.r-project.org/web/packages/xts/index.html
Maybe someone can confirm correct operation in 0.8-2.  Could this be a
Revo/base R version issue?

> sessionInfo()
R version 2.12.2 (2011-02-25)
Platform: i386-pc-mingw32/i386 (32-bit)

locale:
[1] LC_COLLATE=English_United States.1252  LC_CTYPE=English_United
States.1252    LC_MONETARY=English_United States.1252
[4] LC_NUMERIC=C                           LC_TIME=English_United
States.1252

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base

other attached packages:
[1] dplR_1.4.7       xts_0.8-2        zoo_1.7-2        Revobase_4.3.0
 RevoMods_4.3.0   RevoScaleR_1.2-0 lattice_0.19-23


On Fri, Sep 23, 2011 at 8:15 AM, Wolfgang Wu <wobwu22 at yahoo.de> wrote:
>
> Hmmm works fine for me.
>
> xts(1, order.by = strptime("04/05/87 2:00",format="%m/%d/%y %H:%M"))
>
> [,1]
> 1987-04-05 02:00:00    1
>
> Maybe an old version of xts? I am using xts version 0.8-0. (you can check that with sessionInfo().)
>
> Regards,
>
> Wolfgang Wu
>
>
>
>
> ----- Ursprüngliche Message -----
> Von: Dan Potter <arsanalytica at gmail.com>
> An: r-sig-finance at r-project.org
> Cc:
> Gesendet: 12:51 Freitag, 23.September 2011
> Betreff: [R-SIG-Finance] xts NA date for
>
> Hello All,
> I am new to R and having an issue with xts when I try and used it with
> certain dates and times in 1987.
>
> Example
>
> > # This date and time works
> > xts(1, order.by = strptime("04/05/87 12:00",format="%m/%d/%y %H:%M"))
> [,1]
> 1987-04-05 12:00:00 1
>
> # This date and time do not work
> > xts(1, order.by = strptime("04/05/87 2:00",format="%m/%d/%y %H:%M"))
> [,1]
> <NA> 1
>
> I don't think the issue is with strptime since it seems to work fine
> on the offending date and time, i.e.
> > strptime("04/05/87 02:00",format="%m/%d/%y %H:%M")
> [1] "1987-04-05 02:00:00"
>
> Any suggestion or work arounds would be appreciated.
>
> Thanks,
> Dan
>
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