Continuous-time processes with attraction?

  • Context: Graduate 
  • Thread starter Thread starter CRGreathouse
  • Start date Start date
  • Tags Tags
    Attraction
Join the discussion
Registration is free. Ask a follow-up in this thread, or start your own.
2 replies · 2K views
Messages
2,832
Reaction score
0
I'm trying to find a good model, and I wanted to find a process that fits. The Poisson process almost fits, but unfortunately the independence assumption is too strong for my data. Is there a similar process that has a parameter (or several) that allow for points to attract or repel others, like zeta zeros?

I've never been good with statistics, so there could be a very simple process I've overlooked, I don't know.
 
Physics news on Phys.org
CRGreathouse said:
I'm trying to find a good model, and I wanted to find a process that fits. The Poisson process almost fits, but unfortunately the independence assumption is too strong for my data. Is there a similar process that has a parameter (or several) that allow for points to attract or repel others, like zeta zeros?

I've never been good with statistics, so there could be a very simple process I've overlooked, I don't know.

Negative binomial distribution?
The distribution is described by 2 parameters.
One could be considered a "dispersion" parameter;
a degree of "clumping" in the population?
Maybe it could provide a knob for dialing up or down the degree of attraction or repulsion.
 
fopc said:
Negative binomial distribution?
The distribution is described by 2 parameters.
One could be considered a "dispersion" parameter;
a degree of "clumping" in the population?
Maybe it could provide a knob for dialing up or down the degree of attraction or repulsion.

Oh, cool. This looks good -- I'll have to try it with my population to see how well it can model it.

Thanks!