def augment( self, otherMat ):
        assert self.rows == otherMat.rows, 'Size mismatch: %s * %s' % (`self.size`, `otherMat.size`)
        return Mat( map(Table.concat, self, otherMat) )
Make a new matrix with the two original matrices laid side by side
dataset/ETHPy150Open sunlightlabs/clearspending/completeness/statlib/matfunc.py/Matrix.augment