Settings Menu

Choose the "Summary Stats..." command from the Settings menu to select the statistics to be displayed in the "Summary Statistics" table.

Click here for a description of the display options for the Summary Statistics table.

Initial Time...

Choose "Initial Time..." from the Settings menu to set the starting time of a simulation. A dialog box will appear with a box to enter the appropriate number. The starting time can only be changed at the beginning of a simulation.

Population Size...

Choose "Population Size..." from the Settings menu to alter the current size of the population. A dialog box will appear with a box to enter the new value. The shape of the age distribution graph will remain the same. The number of individuals in each age class and gender will be scaled to the new value for population size. To change a specific age class, use the current age distribution graph or table.

Sex Ratio at Birth...

Choose "Sex Ratio at Birth..." from the Settings menu to alter the primary sex ratio in sex-differentiated models. A dialog box will appear with a box to enter the new value. The shape of the age distribution graph will remane the same. The primary sex ratio is the ratio of males to females at birth. This option is "grayed out" for the simple model.

Age Intervals...

Choose the "Age Intervals"... command from the Settings menu to change the following settings prior to any run of the simulation:

• Maximum Age: Click on the space next to ìMaximum Ageî. Enter a number that represents the maximum age an individual can reach in this population.
• Length of each age interval: Click on the space next to ìLength of each age intervalî. Enter a number which can divide the maximum age evenly.

Model Type

Choose the "Model Type" command from the Settings menu to choose from the following types of models:

• Simple Model
• Sex-Differentiated Model
  • Female-limited fertility
  • Male-limited fertility
• Density-dependent Model (sorry! not yet implementedin Java Demography 2.0)

The model type that is currently being used will have a check in front of it. To change to another model, select the appropriate item from the hierarchical menu.

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