The SURPH parameters for a given SURPH probability are set via the parameter dialog window. The parameter dialog shown below is the main effects parameter dialog window for a study with 9 populations and 2 periods (see Release-recapture notes).
For each period in each population, the user can select a number between 1 and N, where N is the number of populations times the number of periods. Each number represents the parameter for that population and period. If two selections are set to the same val ue, the corresponding populations and periods will share the same parameter.
There are four pre-defined settings for the main effects dialog window:
| Button | Model | Description |
|---|---|---|
 |
Null Model | There is one parameter across all populations and periods. |
 |
"Space" Model | There is a unique parameter for each population, but all periods share the same parameter. |
 |
"Time" Model | There is a unique parameter for each period, but all populations share the same parameters. |
 |
"Space/Time" Model | There is a unique parameter for each population and each period. This is the default setting shown above. |