Haslwanter Thomas <thomas.haslwan...@fh-linz.at> wrote: > Personally I cannot think of many applications where it would be desired > to calculate the standard deviation with ddof=0. In addition, I feel that > there should be consistency between standard modules such as numpy, scipy, > and pandas.
ddof=0 is the maxiumum likelihood estimate. It is also needed in Bayesian estimation. If you are not eatimating from a sample, but rather calculating for the whole population, you always want ddof=0. What does Matlab do by default? (Yes, it is a retorical question.) > I am wondering if there is a good reason to stick to "ddof=0" as the > default for "std", or if others would agree with my suggestion to change > the default to "ddof=1"? It is a bad idea to suddenly break everyone's code. Sturla _______________________________________________ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion