>>> np.column_stack((np.ones(10), np.ones(10))).flags
C_CONTIGUOUS : True
F_CONTIGUOUS : False
>>> np.__version__
'1.9.2rc1'
on my notebook which has numpy 1.6.1 it is f_contiguous
I was just trying to optimize a loop over variable adjustment in
regression, and found out that we lost fortran contiguity.
I always thought column_stack is for fortran usage (linalg)
What's the alternative?
column_stack was one of my favorite commands, and I always assumed we have
in statsmodels the right memory layout to call the linalg libraries.
("assumed" means we don't have timing nor unit tests for it.)
Josef
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