Table 4.

Average difference in cross-validated mean square error between various models and a corresponding model without any predictors.

			d score				m score
Lags	Predictors	25 days	30 days	35 days	Predictors	25 days	30 days	35 days
1	d	−1.1 (0.7)	−1.1 (0.5)*	−1.3 (0.5)*	m	−0.4 (0.2)	−0.5 (0.3)	−0.5 (0.4)
1	d, m	−0.9 (0.8)	−1.0 (0.5)	−1.1 (0.5)*	m, d	−0.2 (0.3)	−0.3 (0.3)	−0.4 (0.4)
2	d	−0.3 (1.3)	−0.9 (0.6)	−1.8 (0.5)*	m	−0.2 (0.2)	−0.4 (0.3)	−0.5 (0.4)
2	d, m	−0.0 (1.2)	−0.3 (0.7)	−1.5 (0.5)*	m, d	−0.0 (0.2)	−0.2 (0.3)	−0.3 (0.4)
3	d	−0.5 (1.0)	−0.2 (1.0)	−1.8 (0.6)*	m	−0.0 (0.2)	−0.1 (0.3)	−0.3 (0.4)
3	d, m	1.0 (1.8)	1.7 (2.2)	−0.9 (0.5)	m, d	0.4 (0.4)	0.3 (0.4)	−0.0 (0.5)

^*: P < 0.05