I think you mean to use if instead of ifelse (and you should probably
read briefly on the difference between them: if is the regular
programming construct: ifelse is a vectorized thing)
if(length(theData) == 0) t0 <- t0 else t0 <- theData
which can be more expressly written as
t0 <- if(length(theData)==0) t0 else theData
Michael Weylandt
On Tue, Oct 25, 2011 at 4:05 AM, hchui <helena.chui at flinders.edu.au>
wrote:> Hi there,
>
> I have the following problem using times() and ifelse().
>
> t0 <- c(rep("NA", 7))
> theData <-
times(c("07:36:00","08:09:00","10:28:00","13:28:00","16:29:00",
> "19:30:00","22:29:00"))
> t0 <- ifelse(length(theData)==0, t0,theData)
>
> In this case, R gives this, instead of theData:
>
>> t0
> [1] 0.3166667
>
> Is there a way to fix it? Any hint is welcome.
>
> Many thanks,
> Helena
>
> --
> View this message in context:
http://r.789695.n4.nabble.com/Library-chron-tp3935969p3935969.html
> Sent from the R help mailing list archive at Nabble.com.
>
> ______________________________________________
> R-help at r-project.org 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.
>