On Friday, 13 November 2015 18:17:59 UTC+1, Ian wrote: > On Fri, Nov 13, 2015 at 8:37 AM, PythonDude <mjoexxxxx.com> wrote: > > 3) I DON'T understand why the code doesn't look like this: > > > > means, stds = np.column_stack([ > > for _ in xrange(n_portfolios): > > getMuSigma_from_PF(return_vec) ]) > > Because that would be invalid syntax; you can't put a for loop inside > an expression like that. Your question is not about numpy.column_stack > at all, but about list comprehensions. I suggest you start by reading > this: > > https://docs.python.org/3/tutorial/datastructures.html#list-comprehensions > > Then if you're still confused, come back and ask further questions.
Thank you very much, I'll look careful into that before asking again :-) -- https://mail.python.org/mailman/listinfo/python-list
