Try this:
library(zoo)
x <- c("A","B",NA,NA,"C",NA,NA,NA,NA,"D",NA,NA)
na.locf(x)
On Mon, Jul 28, 2008 at 2:10 PM, Owen Jones <[EMAIL PROTECTED]> wrote:
> I have a vector of data (species names) interspersed with NA values and I
> want a function to "fill in the blanks", replacing NA values with whatever
> the last species name was.
>
> For example the vector:
>
> "A","B",NA,NA,"C",NA,NA,NA,NA,"D",NA,NA.
>
> should evaluate to:
>
> "A" "B" "B" "B" "C" "C" "C" "C" "C" "D" "D" "D"
>
>
> I tried to use rle() in a function to do this but have hit a brick wall.
>
> How would YOU do this?
>
> Many thanks,
>
> Owen
>
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