Fig. 3: The spatial-temporal model for COVID-19 spreading pattern.
From: A general urban spreading pattern of COVID-19 and its underlying mechanism

a–c The overall model fitting performance. d Relation between travel willingness η and Simpson divergence. e, h Relation between travel willingness η and daily reported confirmed cases. g Relation between travel willingness η and the growth rate of spreading radius. f, i Relation between travel willingness η and spreading radius.