I had in mind also, and perhaps I should spell this out,
that the results in terms of t statistics and so forth
should send signals about which variables were less
valuable.
Maarten buis
--- "francesca.modena" <[email protected]> wrote:
> I run a zero inflated poisson model. The sample is 409 observations,
> with 87 nonzero observations and 322 zero observations. There are 42
> independent variables. <snip> Can you suggest me if 42 parameters are
> too many for my sample?
Nick already answered that Stata will tell you if it is completely
impossible to estimate this model. However, even if Stata gives you
output I would still be very nervous about such a model with this data.
Do you really need all 42 variables?
*
* For searches and help try:
* http://www.stata.com/support/faqs/res/findit.html
* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/
