That's not the ifelse() that's the for loop returning NULL
(everything's a function!). If you put the assignment inside you'll
get expected behavior.
x <- (for(i in 1:5) i) # Strange
for(i in 1:5) x<- i # Normal (but notice you only get the last value
because previous ones are overwritten)
Michael
On Mon, Apr 23, 2012 at 4:26 PM, phillip03 <phillipbrig...@hotmail.com> wrote:
> Hi
>
>> EMU1993<-(for (i in 1:nrow(data)){
> + ifelse(year==1992,sum(avgflowEMU),0)
> + })
>
>>EMU1993
> NULL
>
> --
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> Sent from the R help mailing list archive at Nabble.com.
>
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