Residual values of the final trend SAR
model. a) Histogram of residual values. b) Map of residual values. Blank areas are municipalities that were not included in our dataset because of incomplete information or the absence of clinical cases. Paris is represented by a star. Areas of highest negative residual values (in dark blue) indicate a faster than predicted diffusion, while areas of highest positive residual (in red) indicate a slower than predicted diffusion.