Re: [Numpy-discussion] mailmap update
Hi Chuck, Tom Poole t.b.poole at gmail.com http://gmail.com/ tpoole t.b.poole at gmail.com http://gmail.com/ Tom On 2 Aug 2015, at 06:08, Charles R Harris charlesr.har...@gmail.com wrote: Hi All, I'm trying to update the .mailmap file on github and could use some help. The current version seems common to both numpy and scipy, hence the crosspost. Here is what I've got so far. Alex Griffing argriffi at ncsu.edu http://ncsu.edu/ alex argriffi at ncsu.edu http://ncsu.edu/ Alex Griffing argriffi at ncsu.edu http://ncsu.edu/ argriffing argriffi at ncsu.edu http://ncsu.edu/ Alex Griffing argriffi at ncsu.edu http://ncsu.edu/ argriffing argriffing at users.noreply.github.com http://users.noreply.github.com/ Behzad Nouri behzadnouri at gmail.com http://gmail.com/ behzad nouri behzadnouri at gmail.com http://gmail.com/ Carl Kleffner cmkleffner at gmail.com http://gmail.com/ carlkl cmkleffner at gmail.com http://gmail.com/ Christoph Gohlke cgohlke at uci.edu http://uci.edu/ Christolph Gohlke cgohlke at uci.edu http://uci.edu/ Christoph Gohlke cgohlke at uci.edu http://uci.edu/ cgholke ? at ? Christoph Gohlke cgohlke at uci.edu http://uci.edu/ cgohlke cgohlke at uci.edu http://uci.edu/ Han Genuit hangenuit at gmail.com http://gmail.com/ Han hangenuit at gmail.com http://gmail.com/ Jaime Fernandez jaime.frio at gmail.com http://gmail.com/ Jaime jaime.frio at gmail.com http://gmail.com/ Jaime Fernandez jaime.frio at gmail.com http://gmail.com/ jaimefrio jaime.frio at gmail.com http://gmail.com/ Mark Wiebe mwwiebe at gmail.com http://gmail.com/ Mark mwwiebe at gmail.com http://gmail.com/ Mark Wiebe mwwiebe at gmail.com http://gmail.com/ Mark Wiebe mwiebe at enthought.com http://enthought.com/ Mark Wiebe mwwiebe at gmail.com http://gmail.com/ Mark Wiebe mwiebe at georg.(none) Nathaniel J. Smith njs at pobox.com http://pobox.com/ njsmith njs at pobox.com http://pobox.com/ Ondřej Čertík ondrej.certik at gmail.com http://gmail.com/ Ondrej Certik ondrej.certik at gmail.com http://gmail.com/ Ralf Gommers ralf.gommers at googlemail.com http://googlemail.com/ rgommers ralf.gommers at googlemail.com http://googlemail.com/ Saullo Giovani saullogiovani at gmail.com http://gmail.com/ saullogiovani saullogiovani at gmail.com http://gmail.com/ Sebastian Berg sebastian at sipsolutions.net http://sipsolutions.net/ seberg sebastian at sipsolutions.net http://sipsolutions.net/ Anon a...@gmail.com mailto:a...@gmail.com abdulmuneer abdulmuneer at gmail.com http://gmail.com/ Anon a...@gmail.com mailto:a...@gmail.com amir ladsgroup at gmail.com http://gmail.com/ Anon a...@gmail.com mailto:a...@gmail.com cel cel.gentoo at gmail.com http://gmail.com/ Anon a...@gmail.com mailto:a...@gmail.com chebee7i chebee7i at gmail.com http://gmail.com/ Anon a...@gmail.com mailto:a...@gmail.com empeeu empeeu at yahoo.com http://yahoo.com/ Anon a...@gmail.com mailto:a...@gmail.com endolith endolith at gmail.com http://gmail.com/ Anon a...@gmail.com mailto:a...@gmail.com hannaro hroehling at gmx.net http://gmx.net/ Anon a...@gmail.com mailto:a...@gmail.com hpaulj hpj3 at myuw.net http://myuw.net/ Anon a...@gmail.com mailto:a...@gmail.com immerrr immerrr at gmail.com http://gmail.com/ Anon a...@gmail.com mailto:a...@gmail.com jmrosen155 Jordan at Jordans-MacBook-Pro.local Anon a...@gmail.com mailto:a...@gmail.com jnothman jnothman at student.usyd.edu.au http://student.usyd.edu.au/ Anon a...@gmail.com mailto:a...@gmail.com kanhua kanhwa at gmail.com http://gmail.com/ Anon a...@gmail.com mailto:a...@gmail.com mamikony ernest.mamikonyan at sig.com http://sig.com/ Anon a...@gmail.com mailto:a...@gmail.com mbyt random.seed at web.de http://web.de/ Anon a...@gmail.com mailto:a...@gmail.com mlai mlai at begws92.beg.utexas.edu http://begws92.beg.utexas.edu/ Anon a...@gmail.com mailto:a...@gmail.com ryanblak rbtnet at gmail.com http://gmail.com/ Anon a...@gmail.com mailto:a...@gmail.com styr styr.py at gmail.com http://gmail.com/ Anon a...@gmail.com mailto:a...@gmail.com tdihp tdihp at hotmail.com http://hotmail.com/ Anon a...@gmail.com mailto:a...@gmail.com tpoole t.b.poole at gmail.com http://gmail.com/ Anon a...@gmail.com mailto:a...@gmail.com wim glenn wim.glenn at melbourneit.com.au http://melbourneit.com.au/ The Anon author is just a standing in for unknown author. I can make a guess at some of those, but would prefer it if the people in question could supply their proper name and address. TIA, Chuck ___ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion signature.asc Description: Message signed with OpenPGP using GPGMail ___ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion
Re: [Numpy-discussion] Weighted Covariance/correlation
Hi all, Any input to this? Last time it generated a fair bit of discussion, which I’ll summarise here. It’s currently possible to calculate a weighted average using np.average, but the corresponding functionality does not exist for (co)variance or corrcoeff calculations. In this case it’s less straightforward, and we need to worry about what type of information the weights contain. Repeat type weights are the easiest to explain. Here the variances of [x1, x2, x3] with weights [2, 1, 3] and [x1, x1, x2, x3, x3, x3] are identical. For Bessel correction the total number of samples is obtained by summing the weights. These weights do not have to be integer, and in this case the only important assumption is that their sum represents the total sample size. The second type of weights are importances or accuracies. Here the weighs represent the relative strength of contributions from each of the associated samples. Because this is a purely relative relation, there’s no concrete information about the total number of samples. This has to be obtained from the effective sample size, given by (sum(weights)^2)/sum(weights^2). I think the the clearest way of providing both options is to have a boolean switch indicating if the weights represent repeats or frequency type information. I can’t immediately see a good motivation for allowing both concurrently, and think this could cause confusion. Tom On 15 Aug 2014, at 14:46, Sebastian Berg sebast...@sipsolutions.net wrote: Hi all, Tom Poole has opened pull request https://github.com/numpy/numpy/pull/4960 to implement weights into np.cov (correlation can be added), somewhat picking up the effort started by Noel Dawe in https://github.com/numpy/numpy/pull/3864. The pull request would currently implement an accuracy type `weights` keyword argument as default, but have a switch `repeat_weights` to use repeat type weights instead (frequency type are a special case of this I think). As far as I can see, the code is in a state that it can be tested. But since it is a new feature, the names/defaults are up for discussion, so maybe someone who might use such a feature has a preference. I know we had a short discussion about this before, but it was a while ago. For example another option would be to have the two weights as two keyword arguments, instead of a boolean switch. Regards, Sebastian ___ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion ___ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion
