On 15/07/2011 12:15 PM, Johannes Egner wrote:
Dear all,
how come the first loop in the below fails, but the second performs as
expected?
days<- as.Date( c("2000-01-01", "2000-01-02") )
for(day in days)
{
as.POSIXct(day)
}
"day" in the loop above is an integer without a class, it's not a Date.
If you did
for (day in days) {
class(day) <- class(days)
print(as.POSIXct(day))
}
you won't get an error. (I don't know if you'll be happy with what you
get; the time zone is an issue.)
Duncan Murdoch
for( n in 1:length(days) )
{
show(as.POSIXct(days[n]))
}
Many thanks, Jo
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