[NumPy-Tickets] [NumPy] #1976: linalg.qr returns incorrect shape for nx1 arrays

NumPy Trac numpy-tickets@scipy....
Wed Nov 9 21:54:47 CST 2011


#1976: linalg.qr returns incorrect shape for nx1 arrays
--------------------------+-------------------------------------------------
 Reporter:  bransfop      |       Owner:  pv         
     Type:  defect        |      Status:  new        
 Priority:  normal        |   Milestone:  Unscheduled
Component:  numpy.linalg  |     Version:  1.6.0      
 Keywords:  qr, linalg    |  
--------------------------+-------------------------------------------------
 Scipy's linalg.qr returns the correct shape when decomposing the vector
 [[1],[0]] while Numpy's linalg.qr does not. The correct shape should be
 2x2 for Q and 2x1 for R. Numpy's linalg.qr returns a 2x1 and 1x1 array
 while Scipy's linalg.qr returns a 2x2 and 2x1 array. Scipy is correct.

-- 
Ticket URL: <http://projects.scipy.org/numpy/ticket/1976>
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