Explanatory variables used in the Illinois study (see paper for description)							
							
"The Illinois River basin was divided into three regions, as described in Tasker and Stedinger (1986). The regions and values of the binary variables (Z1, Z2) for each were: Little Wabash (1, 0), Rock (0, 1), and Sangamon (0, 0). "							
							
"Values below are logarithms of: (1) Drainage area, in squared miles; (2) main channel slope in feet per mile (3) area of lakes, expressed as percentage of drainage area and increased by one, L; (4) forest cover expressed as percentage of drainage area and increased by one, F; and (5) soil permeability index, Sp "							
							
							
Station	Z1	Z2	Area	Slope	L	F	Sp
1	0	0	5.8916	1.2781	0.10436	1.04028	1.09861
2	0	0	6.3099	1.0116	0.08618	1.11841	1.25276
3	0	0	-2.3026	3.5296	0	0	1.38629
4	0	0	6.6516	0.793	0	1.38629	1.09861
5	0	0	2.3979	2.9339	0	0.03922	0.69315
6	0	0	5.6204	0.6981	0.09531	1.41342	1.09861
7	0	0	6.3315	0.6981	0.04879	1.63705	1.09861
8	0	0	6.765	0.2776	0.05827	1.70293	1.09861
9	0	0	7.8702	0.392	0.35767	1.54969	1.09861
10	0	0	4.6728	1.6845	0	1.00063	1.09861
11	0	0	0.4055	3.6921	0.32208	0.75612	1.60944
12	0	0	5.8141	0.9517	0	2.72524	1.25276
13	0	0	5.366	1.5369	0	0.83725	1.09861
14	0	0	1.1184	3.0796	0	2.8679	1.38629
15	0	0	5.425	1.8294	0	1.06471	1.09861
16	0	0	5.7236	1.6332	0	1.34025	1.09861
17	0	0	-0.1053	3.8916	0	2.30259	1.09861
18	0	0	5.8081	1.7509	0	1.82455	0.69315
19	0	0	7.4978	0.7975	0	1.89912	1.09861
20	0	0	-0.0619	3.168	0	0	1.38629
21	0	0	3.2771	0.7701	0	0	1.38629
22	0	0	8.5356	0.239	0.19885	1.8916	1.09861
23	0	1	0.27	3.7104	0	0	1.38629
24	0	1	7.1899	0.6981	0.7031	2.33988	1.38629
25	0	1	0.6678	3.3796	0	0	1.38629
26	0	1	-0.6539	4.5758	0	2.70805	1.60944
27	0	1	7.8438	0.6981	1.02245	2.18717	1.38629
28	0	1	8.7583	-0.1744	2.21047	2.15987	1.38629
29	0	1	0.793	3.6954	0	1.09861	1.38629
30	0	1	4.4438	1.744	1.09861	1.60944	1.38629
31	0	1	-0.1744	4.4698	1.38629	2.83321	1.38629
32	0	1	6.2879	1.5239	2.59301	1.24415	1.38629
33	0	1	0.5128	3.3576	0	0	1.38629
34	0	1	5.9584	0.8198	0	1.22671	1.38629
35	0	1	0.5365	3.9843	0	1.94591	1.50408
36	0	1	7.0022	1.4036	2.32435	1.24127	1.38629
37	0	1	4.7622	1.8469	0	0.21511	1.38629
38	0	1	0	3.5013	0	1.09861	1.38629
39	0	1	-1.8971	4.9671	0	0	1.50408
40	0	1	4.6347	2.3466	0.23902	0.802	1.38629
41	0	1	9.0774	0	2.08318	2.0189	1.38629
42	0	1	4.9836	1.454	0.16551	1.38879	1.38629
43	0	1	0.3507	4.0975	0	0	1.38629
44	0	1	5.0626	1.13635	0.17395	1.8718	1.50408
45	0	1	9.1644	0.1044	2.01223	1.99198	1.38629
46	0	1	5.3033	1.3481	0.66783	1.51293	1.38629
47	0	1	1.5994	3.0402	0	0	1.38629
48	0	1	1.6544	2.4105	1.83896	0	1.38629
49	0	1	0.1989	3.4818	0	0	1.38629
50	0	1	6.9108	0.9282	0.93609	1.58924	1.38629
51	0	1	4.1336	2.0069	0.05827	2.53211	1.50408
52	0	1	-1.5141	4.2056	0	0	1.50408
53	1	0	0.4824	2.975	0	1.22671	0
54	1	0	-0.844	4.2988	0.69315	3.04452	0
55	1	0	7.0309	0.6981	0.32208	3.1086	0
56	1	0	0.4824	3.5852	0	2.41054	0
57	1	0	-2.5257	4.5925	0	3.41411	0
58	1	0	-0.844	4.4734	0	2.91831	0
59	1	0	4.5768	1.4036	0	2.94444	0
60	1	0	6.1399	0.6419	0	3.30064	0
61	1	0	8.0398	0.1484	0.13103	3.01994	0
62	1	0	-1.8326	4.4971	1.60944	3.78419	0