where are these NAs coming from?
Well, you have no reproducible example, but I suspect either of these will fix it: locals <- z[z$country == mycountry & !is.na(z$country),] locals <- subset(z, country == mycountry) Sarah
On Wed, Sep 19, 2012 at 1:50 PM, Sam Steingold <sds at gnu.org> wrote:
I see this: --8<---------------cut here---------------start------------->8---
length(which(is.na(z$language)))
[1] 0
locals <- z[z$country == mycountry,] length(which(is.na(locals$language)))
[1] 229 --8<---------------cut here---------------end--------------->8--- where are those locals without the language coming from?!
Sarah Goslee http://www.functionaldiversity.org