Figure 5

Variable importance rank and partial dependence plot of carbon dioxide (CO2) from Random Forests models. (ACTIVE, Indoor activities; CO2, carbon dioxide(ppm); DENSITY, Occupant density (person/m2); RH, relative humidity (%); SHOP, coffee shop A, B, C, D; STREET, locating on the main traffic street; TEMP, temperature(°C); VENT, ventilation status).