On Aug 6, 2014, at 10:07 AM, Terrence Ireland wrote:
> There seems to be a result type difference when subscripting a 6 x 1 matrix
> as compared to a 3 x 2 matrix that is caused by the ncol = 1 compared to ncol
> > 1.
>
> > ThinMatrix <- matrix(1:6,ncol=1)
> > ThinMatrix
> [,1]
> [1,]1
You want `drop=FALSE`:
> dim(ThinMatrix[TRUE, , drop=FALSE])
[1] 6 1
>From ?"[":
drop: For matrices and arrays. If ‘TRUE’ the result is coerced to
the lowest possible dimension (see the examples). This only
works for extracting elements, not for the replacement. See
