Fig. 4
From: Methods for detecting seasonal influenza epidemics using a school absenteeism surveillance system
Characteristics of regression models. Effects of different model factors and absenteeism data aggregations on FAR averaged over all regression model types with optimized parameters. Each row represents a different aggregation for absenteeism data and each column represents either a data handling method or whether an additional predictor aside from absenteeism was included in the model. The pairs of columns separated by spaces can be compared to view the effect on FAR across the different data aggregations, where a lighter shade indicates preferable (lower) FAR. The value within each cell is the mean FAR