> Are you saying that the values in the matrix are non-numbers? > No, our matrices are Real. but Anand was referring to row key support which can be any type with a Writable view bound (in scala terms; also true with their persistence in Mahout sequence file DRM format).
> > Or simply that rows and columns are labeled? > rows are labeled. but they have algebraic signficance. > > I was trying to say the latter and add that the core of the matrix is > entirely numerical. This is certainly true of the in-core math. > True. But again, we were not discussing matrix elements. Just the labels.
