Fig. 4
From: A nowcast model to predict outdoor flea activity in real time for the contiguous United States
R2 values for each state from the linear regression model which regressed the weekly average forecasted flea activity index value on the smoothed Google Trends data for 2016 (top left), 2017 (top right), 2018 (middle left), 2019 (middle right) and 2020 (bottom left). The average R2 value across all 5 years for each state is shown in the bottom right. Google Trends data for Georgia were missing and therefore excluded from the analysis