Also, I am not sure how to use alan's code.

If I try:

ec = empirical_cdf(my_data)
plt.plot(ec)

it doesn't actually look like a cdf

On Fri, Jul 9, 2010 at 10:17 AM, per freem <perfr...@gmail.com> wrote:
> How does Alan's code compare with using cumfreq and then plotting its
> result?  Is the only difference that cumfreq bins the data?
>
> On Fri, Jul 9, 2010 at 10:12 AM, Robert Kern <robert.k...@gmail.com> wrote:
>> On 7/9/10 10:02 AM, per freem wrote:
>>> I'd like to clarify: I want the empirical cdf, but I want it to be
>>> normalized.  There's a normed=True option to plt.hist but how can I do
>>> the equivalent for CDFs?
>>
>> There is no such thing as a normalized empirical CDF. Or rather, there is no
>> such thing as an unnormalized empirical CDF.
>>
>> Alan's code is good. Unless if you have a truly staggering number of points,
>> there is no reason to bin the data first.
>>
>> --
>> Robert Kern
>>
>> "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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