Re: RowMatrix: tallSkinnyQR

Since this function is used to compute QR decomposition for RowMatrix of a tall and skinny shape, the output R is always with small rank. [image: Inline image 1] On Fri, Jun 9, 2017 at 10:33 PM, Arun wrote: > hi > > *def tallSkinnyQR(computeQ: Boolean = false):

RowMatrix: tallSkinnyQR

hi *def tallSkinnyQR(computeQ: Boolean = false): QRDecomposition[RowMatrix, Matrix]* *In output of this method Q is distributed matrix* *and R is local Matrix* *Whats the reason R is Local Matrix?* -Arun