표 2 모형의 비교척도

비교방법	척도(Measures)
• Average Relative Bias(ARB)	1 m ∑ i = 1 m | c i − e i | c i
• Average Squared Relative Bias(ASRB)	1 m ∑ i = 1 m ( c i − e i ) 2 c i
• Average Absolute Bias(AAB)	1 m ∑ i = 1 m | c i − e i |
• Average Squared Deviation(ASD)	1 m ∑ i = 1 m ( c i − e i ) 2