Re: Extending Poisson Distribution to trending datasets

From: Robert Dodier (robert_dodier_at_yahoo.com)
Date: 09/30/04 

Date: 29 Sep 2004 20:17:44 -0700

flipsu5@comcast.net (Fred Chen) wrote:

> What care must I take to apply Poisson statistics to data that
> normally exhibits random behavior from one data point to another, but
> could reflect a systematic behavior in the big picture, i.e., exhibit
> a long-term trend?
>
> In case the Poisson assumption breaks down, what statistics can be
> used for the analysis?

You might consider making the parameter of the Poisson
distribution dependent on time or some other variables.
I believe this scheme is known as "Poisson regression".

Or it may be that's totally off the wall. If you post
some details, maybe someone will have a better idea.

For what it's worth,
Robert Dodier

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