[Numpy-discussion] numpy histogram normed=True (bug / confusing behavior)
Sat Aug 28 10:37:57 CDT 2010
On Sat, Aug 28, 2010 at 04:12, Zbyszek Szmek <firstname.lastname@example.org> wrote:
> 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 <email@example.com>
>> On Fri, Aug 27, 2010 at 15:32, David Huard <firstname.lastname@example.org>
>> > 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.
"I have come to believe that the whole world is an enigma, a harmless
enigma that is made terrible by our own mad attempt to interpret it as
though it had an underlying truth."
-- Umberto Eco
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