statsmodels.tools.tools.
unsqueeze
Unsqueeze a collapsed array
>>> from numpy import mean >>> from numpy.random import standard_normal >>> x = standard_normal((3,4,5)) >>> m = mean(x, axis=1) >>> m.shape (3, 5) >>> m = unsqueeze(m, 1, x.shape) >>> m.shape (3, 1, 5) >>>
statsmodels.tools.tools.recipr0
statsmodels.tools.numdiff.approx_fprime