R-alpha: x[NA]
On 23 Sep 1997, Peter Dalgaard BSA wrote:
BTW, while you obviously can't mix logical and numerical references I
think it's unfortunate that you can't mix numeric and name-based
references like
R> names(x)<-letters[1:4]
R> x
a b c d
1 2 3 4
R> x[c("a",2)]
Error: subscript out of bounds
<snip>
I think that the possibility of setting names(x)<-4:1 will demonstrate why that can't work... Besides, can you be sure that the dependent variable is the first one in a model frame any more?
Why? R> x<-1:4 R> names(x)<-4:1 R> x[1] 4 1 R> x["1"] 1 4 So why not x[c(1,"1")] giving 1,4? -thomas =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- r-devel mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subject !) To: r-devel-request@stat.math.ethz.ch =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-