Difference between revisions of "Epidemic View"

Revision as of 14:33, 10 October 2008

Introduction

STEM provides an Epidemic Analysis tool for users to study results of a previous run and to analyze the resulting epidemic. The Epidemic View can also be used to analyze imported data.

Viewing Data From an Existing Epidemic Scenario

  1. Enter the Analysis Perspective
  2. Click on the Epidemic Tab
  3. Use the Select Folder button to chose the folder containing the epidemic data you wish to study. 
     The files should have the following format.
  4. Click Aggregate Data. This will automatically create two aggregated data files based on the data in the original 
     scenario folder. These file names will appear in the text fields for Scenario Aggregate File and Scenario 
     Incidence file. The aggregated data will be written to the 'aggregate' and 'incidence' subfolders respectively
     (these will be created if they do not exist). The files will be named based on the input disease name. 
     The aggregate data is the running integral or sum over time of all compartment data (S,E,I,R)
     over all locations in the input scenario folder. The incidence data contains differential data including 
     incidence (new cases at time t),new births, deaths, etc. Incidence data will be estimated if it does not exist
     in the original scenario data files. Note, if you already have aggregate data you can also input these files 
     manually.
  5. On the left hand side the Epidemic view will show the integrated state data (S,E,I,R, etc). 
     Differential data will appear on the right hand chart. To toggle between linear and logarithmic scales or to change 
     what variables are plotted just right click and use the custom dialog that will appear.