Fig. 3

Distance between pre-selected and recorded geolocations of housing structures in the mapping survey in Pemba, Tanzania, per shehia. The horizontal middle lines in each boxplot indicate the median distance per shehia, the boxes indicate the lower and upper quartile, the vertical lines indicate the minimum and maximum excluding outliers, and the dots indicate outliers (more than 1.5 times the interquartile range below the first or above the 3rd quartile). For shehia 1, 2 and 6 the maximum outliers are indicated separately. The red dashed line indicates the median distance between pre-selected and recorded geolocations across all 20 shehias