Table 6.

Statistical results of model variables.

	Daily_RMS	Hourly_RMS	Daily_R	Hourly_R
Original model	0.36	0.36	0.97	0.97
Without $X_i^{\mathit{airt}}$	1	0.97	0.78	0.81
Without $X_i^{\mathit{rh}}$	0.38	0.39	0.97	0.96
Without $X_i^{\mathit{airt}}$ & $X_i^{\mathit{rh}}$	1.08	1.04	0.73	0.79
Without $X_i^{\mathit{rh}\_\mathit{std}}$	0.38	0.38	0.97	0.96
Without $X_i^{\mathit{wspd}}$	0.35	0.41	0.98	0.96
Without $X_i^{\mathit{airt}},\hspace{0.17em}{X}_i^{\mathit{rh}},\hspace{0.17em}{X}_i^{\mathit{wspd}}$		1.13		0.71
Without $X_i^{\mathit{airt}},\hspace{0.17em}{X}_i^{\mathit{rh}\_\mathit{std}},\hspace{0.17em}{X}_i^{\mathit{rh}}$	1.31		0.53