epidemic simulation 40

Author:
Arthur Lee
1. Enter a number in 'spread' to specify no. of contacts with infected persons. 2. Click 'generate' to get new contacts with infected persons. 3. Uncheck 'show all' to see only new contacts. 4. Check each box for a new case if it is not a previous infected person. 5. Check 'show all' to see all infected persons (checked boxes). 6. Adjust the 'spread' number and repeat the steps.
Enter number of all and newly infected persons in each day in the spreadsheet. To plot the points after the simulation, click inside the graph area. Then, in the spreadsheet, select columns of 'day' and 'all' and plot them by choosing 'create list of points' in the toolbar.