<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div>Technically linear regression can be implemented in one line of code assuming a good linear algebra package:</div><div><a href="http://code.google.com/p/fin2py/source/browse/numeric.py#791">http://code.google.com/p/fin2py/source/browse/numeric.py#791</a></div><div>(here used for fitting polynomials or any other bivariate or multivariate function linear in coefficients)</div><div><br></div><div>Unless python is going to have a built-in linear algebra packages, I think linear regressions fits better in scipy.</div><div><br></div><div>Massimo</div><div><br></div><br><div><div>On Sep 12, 2011, at 9:35 PM, Stephen J. Turnbull wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div>Steven D'Aprano writes:<br><br><blockquote type="cite">I propose adding a basic calculator statistics module to the standard <br></blockquote><blockquote type="cite">library, similar to the sorts of functions you would get on a scientific <br></blockquote><blockquote type="cite">calculator:<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">mean (average)<br></blockquote><blockquote type="cite">variance (population and sample)<br></blockquote><blockquote type="cite">standard deviation (population and sample)<br></blockquote><blockquote type="cite">correlation coefficient<br></blockquote><br>+1 for these.<br><br><blockquote type="cite">and similar.<br></blockquote><br>I'm not sure about that. I immediately thought "how about bivariate<br>linear regression?", but that's actually misleading in many cases.<br>Doing anything more general is beyond the scope of "like a typical<br>scientific/statistical hand calculator".<br><br>On the other hand, well-commented code showing how to do the bivariate<br>case would help people to implement more general cases. Ditto for<br>other common tasks like chi-square tests.<br><br><br>_______________________________________________<br>Python-ideas mailing list<br><a href="mailto:Python-ideas@python.org">Python-ideas@python.org</a><br>http://mail.python.org/mailman/listinfo/python-ideas<br></div></blockquote></div><br></body></html>