Try this (and see R News 4/1):
> library(chron)
> tt <- times(paste("5:20", "00", sep = ":")); tt
[1] 05:20:00
> tt + 12/24 # add 12 hours
[1] 17:20:00
On Wed, Feb 3, 2010 at 8:27 AM, karine heerah <karine.hee...@hotmail.fr> wrote:
>
> hi,
>
>
>
> I have my data time expressed in character string exple "5:20" (hour:min) and
> i want to convert these in times recognized by R. I have tried the POSIXct
> function:
>
>
>
> balise07$Hour <- as.POSXIct(balise07$Hour)
>
>
>
> but it didn't work.
>
> Do you know why? Do you know how i can convert my string character in a real
> time?
>
>
>
> Thanks
>
> Karine HEERAH
>
> Master 2 mention "océanographie et environnements marins", parcours océanique
>
> 42 rue Salvador Allende
> 92000 Nanterre
> 06.61.50.97.47
>
>
>
>
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>
>
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