[R] integers to POSIXct

[Gabor Grothendieck]

Here are a few ways:


now <- Sys.time()
Epoch <- now - as.numeric(now)
i + Epoch

structure(i, class = c("POSIXt", "POSIXct"))

class(i) <- c("POSIXt", "POSIXct")


On 10/4/06, paul sorenson <news01 at metrak.com> wrote:
> What is the recommended way to convert/coerce and integer to a POSIXct
> please?
>
> d <- as.POSIXct(Sys.Date())
> i <- as.integer(d)
>
> as.POSIXct(i)
> Error in as.POSIXct.default(i) : do not know how to convert 'i' to class
> "POSIXlt"
>
> This appears to be the behaviour in 2.3.1 and 2.4.0 on windows XP.
>
> I have tried searching on this and found as.Date.integer in package zoo
> which performs a similar function but wondered if there was something
> basic I was missing in the base distribution?
>
> cheers
>
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