I was thinking of the Cauchy distribution, with undefined variance. But Augustin-Louis Cauchy had quite a few things named after him. I know best Cauchy sequences as a construction of Real numbers.
On Sun, Aug 29, 2021, 2:36 AM Stephen J. Turnbull < stephenjturnb...@gmail.com> wrote: > David Mertz, Ph.D. writes: > > > > I have a distribution for you: Cauchy. :-) > > > > > > > Oh? Because NaN is the *result* of `stats.variance(cauchy)`? > > > > It still seems like as INPUTS to a stats function NaN ~= missing. > > Well, that was a little opaque. I wanted to fit it into the "I have a > ... for you" pattern. > > What I meant by "Cauchy" was just a ratio whose denominator's support > includes zero. It's occasionally seen in (not so hot) dynamic > economic trade models (designed on the assumption of positive growth > rates oops :-�)P). I don't know about other contexts. > > Steve > >
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