On Sun, Aug 29, 2010 at 3:21 PM, Nils Becker <n.bec...@amolf.nl> wrote: >> On Sat, Aug 28, 2010 at 04:12, Zbyszek Szmek <zbys...@in.waw.pl> wrote: >>> Hi, >>> >>> On Fri, Aug 27, 2010 at 06:43:26PM -0600, Charles R Harris wrote: >>>> ? ?On Fri, Aug 27, 2010 at 2:47 PM, Robert Kern <robert.k...@gmail.com> >>>> ? ?wrote: >>>> >>>> ? ? ?On Fri, Aug 27, 2010 at 15:32, David Huard <david.hu...@gmail.com> >>>> ? ? ?wrote: >>>> ? ? ?> Nils and Joseph, >>>> ? ? ?> Thanks for the bug report, this is now fixed in SVN (r8672). >>>> >>>> ? ? ?While we're at it, can we change the name of the argument? "normed" >>>> ? ? ?has caused so much confusion over the years. We could deprecate >>>> ? ? ?normed=True in favor of pdf=True or density=True. >>> I think it might be a good moment to also include a different type of >>> normalization: >>> ? ? ? n = n / n.sum() >>> i.e. the frequency of counts in each bin. This one is of course very simple >>> to calculate >>> by hand, but very common. I think it would be useful to have this >>> normalization >>> available too. >>> [http://www.itl.nist.gov/div898/handbook/eda/section3/histogra.htm] >> >> My feeling is that this is trivial to do "by hand". I do not see a >> reason to add an option to histogram() to do this. >> > Hi, > > +1 for not silently changing the behavior of normed=True. (I'm one of > the people who have worked around it). > > One argument in favor of putting both normalizing styles 'frequency' and > 'density' may be that the documentation will automatically become very > clear. A user sees all options and there is little chance of a > misunderstanding. Of course, a sentence like "If you want frequency > normalization, use histogram(data, normalized=False)/sum(data)" would > also make things clear, without adding the frequency option. > I am in favor of adding an option for the density mode (not for this release I guess). I often have a long expressing in place of `data` and the one extra keyword saves lot's of typing.
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