why the a[-indx] does not work?
On 11-10-30 2:52 PM, Alaios wrote:
Dear all, Could you please explain me why
OverloadsTesT
[1] 1 0 1 0 0 0 0 0 0 0
a<-matrix(data=seq(1,10),nrow=10) a
[,1] [1,] 1 [2,] 2 [3,] 3 [4,] 4 [5,] 5 [6,] 6 [7,] 7 [8,] 8 [9,] 9 [10,] 10
a[-OverloadsTesT]
[1] 2 3 4 5 6 7 8 9 10 the last line does not remove the first and third element and only does the first element.? What I want to do is for zeros to return the elements and for any positive value to remove it. What I am doing wrong?
You are asking it to remove item 1, and it does. If you want to negate a logical vector, you need to use a logical vector and negate it, e.g. OverloadsTesT <- as.logical(OverloadsTeSt) a[!OverloadsTest] Duncan Murdoch