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. 2018 Jan 23;18(2):59. doi: 10.3390/s18020059

Figure 9.

Figure 9

Scatter plot of AQMS and sensor data by Model 0 and corrective Model-opt. (a) CO, (b) NO, (c) NO2, (d) O3. Insets represent the cumulative errors in each temperature and relative humidity bin. Subplots 1 and 3 are color categorized plots by temperature for Model 0 and Model-opt, respectively. Subplots 2 and 4 are color categorized plots by relative humidity for Model 0 and Model-opt, respectively.