[R] About zero-inflation poisson model

[Achim Zeileis]

On Fri, 11 Dec 2009, Xiongqing Zhang wrote:

> Hello all, I am Xiongqing Zhang, come from Beijing of China. I know you from the web site: http://finzi.psych.upenn.edu/Rhelp08/2008-February/154627.html.
>
> I am not very clear about the R-project software.

Look at
   http://www.R-project.org/
especially the "Documentation" section in the menu.

> But I want to estimate the parameters and errors of zero-inflation 
> poisson model. Can you help me?

Look at
   http://www.jstatsoft.org/v27/i08/

> Data is in the attachement. Thank you.
>
> I will be very appreciated if you can help me.
>
> Best regards,
>
> Yours,
> Xiongqing Zhang