In article <F4B_9.16504$[EMAIL PROTECTED]>,
Xiaoxin Yin <[EMAIL PROTECTED]> wrote:
>Hi,

>Could any one tell me what is Zipfian distribution with parameter C?

>I guess it means something similar to "for every object x,
>rank(x)*prob(x)=C".

It is usually used for 

        P(X = n) = n^{-C}/zeta(C)

for C > 1.

Zipf tried to introduce it for C=1, which would correspond
somewhat to what you wrote, but in that case, the sum comes
out to be infinite.




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Herman Rubin, Deptartment of Statistics, Purdue University
[EMAIL PROTECTED]         Phone: (765)494-6054   FAX: (765)494-0558
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