datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2005,12 0:30:00,31 ,177.0613,320.9118,243.7187,35.48439
sgpcmbeC1.c1,2005,12 1:30:00,31 ,173.5571, 319.326,241.0231,38.02614
sgpcmbeC1.c1,2005,12 2:30:00,31 , 171.355,313.9172,239.8913,37.75897
sgpcmbeC1.c1,2005,12 3:30:00,31 , 169.026,314.5519,243.0535,36.45232
sgpcmbeC1.c1,2005,12 4:30:00,31 ,164.6177,  311.74,245.9081,37.57479
sgpcmbeC1.c1,2005,12 5:30:00,31 ,163.5396, 308.928,246.2887,37.87506
sgpcmbeC1.c1,2005,12 6:30:00,31 ,162.9782,310.7653,249.0256,36.80406
sgpcmbeC1.c1,2005,12 7:30:00,31 ,162.8673,315.0941,246.3499,35.65527
sgpcmbeC1.c1,2005,12 8:30:00,31 ,163.8809,318.1338,247.3785,36.52539
sgpcmbeC1.c1,2005,12 9:30:00,31 ,166.9254, 331.364,  251.76,35.79156
sgpcmbeC1.c1,2005,1210:30:00,31 , 169.763,327.8564,258.5776,37.91762
sgpcmbeC1.c1,2005,1211:30:00,30 ,172.7193,331.8725,263.0189,36.66617
sgpcmbeC1.c1,2005,1212:30:00,31 ,175.2153,334.1779,265.3835,34.99858
sgpcmbeC1.c1,2005,1213:30:00,31 ,178.4238,334.7224,265.2936,34.66907
sgpcmbeC1.c1,2005,1214:30:00,31 ,180.3441,338.0825,266.9507,  36.088
sgpcmbeC1.c1,2005,1215:30:00,31 ,181.2765,339.2011,268.5641,35.39988
sgpcmbeC1.c1,2005,1216:30:00,31 ,182.1298,341.4561,265.7529,35.72776
sgpcmbeC1.c1,2005,1217:30:00,31 ,181.6874,344.0523,263.5841,36.26861
sgpcmbeC1.c1,2005,1218:30:00,31 ,182.8732,348.2531,260.5195,37.16004
sgpcmbeC1.c1,2005,1219:30:00,31 , 182.287,348.6971,262.3859,38.13923
sgpcmbeC1.c1,2005,1220:30:00,31 ,181.5832,333.3255,261.0209,34.07787
sgpcmbeC1.c1,2005,1221:30:00,31 ,180.4814,320.5241,258.1083,31.26085
sgpcmbeC1.c1,2005,1222:30:00,31 ,178.4522,322.4868,252.3507,33.07486
sgpcmbeC1.c1,2005,1223:30:00,31 ,177.8621,323.4315,247.6278, 32.2399