random number including 1 - i.e. [0,1]
robert.kern at gmail.com
Wed Jun 10 20:47:40 CEST 2009
On 2009-06-09 19:27, Mensanator wrote:
> On Jun 9, 6:12 pm, Robert Kern<robert.k... at gmail.com> wrote:
>> On 2009-06-09 18:05, Mensanator wrote:
>>> On Jun 9, 4:33 pm, Esmail<ebo... at hotmail.com> wrote:
>>>> random.random() will generate a random value in the range [0, 1).
>>>> Is there an easy way to generate random values in the range [0, 1]?
>>>> I.e., including 1?
>>>> I am implementing an algorithm and want to stay as true to the
>>>> original design specifications as possible though I suppose the
>>>> difference between the two max values might be minimal.
>>>> ps: I'm confused by the docs for uniform():
>>>> random.uniform(a, b)
>>>> Return a random floating point number N such that a<= N<= b for a<= b
>>> That's wrong. Where did you get it?
> Ok, but the 2.6.1 docs say
> random.uniform(a, b)
> Return a random floating point number N such that a<= N< b
> for a<= b and b<= N< a for b< a.
> Is that a new feature of 2.6.2?
As already pointed out, it's not really a new feature of the method, but rather
a fix for the buggy documentation. Because of floating point arithmetic, one
cannot guarantee that a+(b-a)*u is strictly in [a,b) even though u is strictly
"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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