[R] Zeta and Zipf distribution

[Mauro Rossi]

Dear R user,
 I want to estimate the parameter of ZETA or/and ZIPF distributions 
using R, given a series of integer values. Do you know a package 
(similar to MASS) or a function (similar to fitdistr) I can use to 
estimate the parameter of these distributions using MLE method? 
Otherwise do you know a function (which use MLE method to estimate 
distribution parameters) that allow me to specify a PDF or PMF?
Thanks,
Regards
Mauro Rossi

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Mauro Rossi
Istituto di Ricerca per la Protezione Idrogeologica
Consiglio Nazionale delle Ricerche
Via della Madonna Alta, 126
06128 Perugia
Italia
Tel. +39 075 5014421
Fax +39 075 5014420