Table 2.

Mean absolute percentage error for linear regression and selected input data.

Feature subset description	MAPE (–)	Input data
Best combination without history	0.03662	Days of the week, wind speed, maximum temperature
All features	0.02814	All 15 features
Best one feature	0.02676	History0
Best two features	0.02463	History0, history1
Best for one week history	0.02405	History0, days of the week, precipitation, wind speed, minimum temperature
Best three features	0.02399	History0, history1, wind speed
Best without week days	0.02383	History0, history1, precipitation, wind speed, mean temperature
Best feature combination	0.02379	History0, history1, days of the week, precipitation, wind speed, ground temperature