[R] Converting a Vector into a 2-level Factor
wwwhsd at gmail.com
Thu Oct 22 12:47:43 CEST 2009
factor(vowels == "aa", labels = c("aa", "~aa"))
On Thu, Oct 22, 2009 at 4:36 AM, <ntyson at clovermail.net> wrote:
> Hello Everyone,
> Let's say I have a vector as follows:
> vowels = c("aa", "aa", "ah", "ao", "eh)
> I want to make a factor consisting of two levels: the things that are "aa"
> and those that are not "aa". How would I do that?
> I tried using factor(vowels, levels=c("aa", "~aa"), exclude=NULL), but this
> gives me '<NA>' or missing values, which is not what I want. If there is no
> way to get two levels, then how do I convert the NAs to another symbol of my
> Any suggestions are welcome.
> R-help at r-project.org mailing list
> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
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