Zero-truncated Poisson model in R

Hi Manuel,

It seems that the package VGAM is taking zerotruncated models into 
account. You can find more info on 
http://www.stat.auckland.ac.nz/~yee/VGAM/index.html. You can use as a 
family function "posnegbinomial" (for zero truncated data with negative 
binomial distribution) or "pospoisson" (for zero truncated data with 
poisson distribution).

kind regards,

Maarten

Dear list members,

Is there any function  to do zero-truncated poisson or zero-truncated 
negative binomail in R?
Thank you very much in advance.
Best,

Manuel Sp?nola