Steven D'Aprano <steve+pyt...@pearwood.info> added the comment:
I can't speak for other countries, but in Australia, secondary school mathematics teaches correlation coefficient and linear regression from Year 11 onwards (typically ages 16 or 17). Covariance is not itself taught, and as far as I can tell neither the TI-83 nor NSpire provides a built-in covariance command. On the other hand, other calculators such as the HP-48GX do. Oddly, Excel provides the population (not sample) covariance: https://support.office.com/en-us/article/COVARIANCE-P-function-6F0E1E6D-956D-4E4B-9943-CFEF0BF9EDFC OpenOffice and LibreOffice also provide a covariance function. I think that supporting correlation coefficient `r` and linear regression would be clear wins, from the perspective of secondary school maths. But as far as covariance goes, it would help convince me if you had either: - evidence that covariance is taught in secondary schools, or at least first year undergraduate statistics; - that it has use-cases beyond "helper for calculating r"; - or that there is demand for it from people who want covariance but can't, or don't want to, use numpy/scipy. ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue38490> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
