[R] summing columns with NAs present

[Dimitri Liakhovitski]

Sorry, never mind - I have to use rowSums with na.rm=T
Dimitri

On Fri, Aug 5, 2011 at 2:01 PM, Dimitri Liakhovitski
<dimitri.liakhovitski at gmail.com> wrote:
> Hello!
>
> I have a data frame with some NAs.
> test<-data.frame(a=c(1,2,NA),b=c(10,NA,20))
>
> I need to sum up values in 2 variables. However:
> test$a+test$b
> procudes NAs in rows that have NAs.
>
> How could I sum up columns while ignoring NAs (the way the function
> sum(..., na.rm=T) works?
> Thank you!
> --
> Dimitri Liakhovitski
> marketfusionanalytics.com
>



-- 
Dimitri Liakhovitski
marketfusionanalytics.com