Correcting Air-Pressure Data Collected by MEMS Sensors in Smartphones

Figure 5

Distribution plots, indicating the MAE ((a) and (c)) and RMSE ((b) and (d)) according to the SD in distance ((a) and (b)) and pressure ((c) and (d)) from the public weather stations by smartphone user (limited to the cases in Gyeonggi-do for data items exceeding 1,000).

(a)

(b)

(c)

(d)