On 18 October 2013 16:36, <chip9m...@gmail.com> wrote: > one more thing. > > the problem is not in the last column, if I use it in regression (only that > column, or with a few others) I will get the results. But if I use all 43 > columns python breaks!
Have you tried testing the rank with numpy.linalg.matrix_rank? I'm guessing that the extra row makes the matrix singular (up to floating point error). Oscar -- https://mail.python.org/mailman/listinfo/python-list
