Table 6: Probability Density Functions for the NREL July Data Set, given by hour.

Hour	Mean	σ/S	Distribution	R2
0	-0.0158	0.0323	Logistic	0.6388
1	-0.0155	0.025	Logistic	0.4352
2	-0.0243	0.0449	Logistic	0.9141
3	-0.014	0.0265	Logistic	0.8083
4	-0.0157	0.0315	Logistic	0.9059
5	-0.0186	0.0283	Logistic	0.9785
6	-0.0123	0.0249	Logistic	0.6388
7	0.0138	0.0277	Normal	0.9757
8	0.0642	0.0580	Normal	0.9271
9	0.1204	0.0575	Normal	0.9952
10	0.1928	0.0824	Normal	0.9941
11	0.2059	0.0849	Normal	0.9871
12	0.2309	0.1105	Normal	0.9884
13	0.2149	0.1248	Normal	0.9841
14	0.1812	0.1148	Normal	0.9912
15	0.1092	0.1085	Normal	0.9734
16	0.0744	0.0836	Normal	0.9570
17	0.0459	0.0584	Normal	0.9777
18	0.0121	0.0431	Normal	0.8314
19	-0.0092	0.0222	Logistic	0.9832
20	-0.0185	0.0241	Logistic	0.8976
21	-0.0197	0.0286	Logistic	0.8432
22	-0.0216	0.028	Logistic	0.9032
23	-0.023	0.0259	Logistic	0.9404