[R] vector problems

[Christopher Fonnesbeck]

I dont get it:

> is.vector(c(mydf[1]))
[1] TRUE
> unique(c(mydf[1]))
Error in unique(c(mydf[1])) : unique() applies only to vectors
> 

Is it a vector or not? This stuff is driving me nuts. I'm simply trying
to convince R that my grouping vector is actually a vector so that
unique will work. Its just a vector of numbers, so why shouldnt it work?
-- 
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Christopher J. Fonnesbeck 
Ph.D. Student

Georgia Co-operative Wildlife Unit
University of Georgia 
Athens, GA 30602

email: chris at fonnesbeck.net
       cfonnesb at stat.uga.edu
Yahoo: fonnesbeck_chris

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