datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2006,11 0:30:00,27 ,       0,923.9102, 48.5102,177.2645
sgpcmbeC1.c1,2006,11 1:30:00,27 ,       0,1238.052,60.82031,237.1247
sgpcmbeC1.c1,2006,11 2:30:00,27 ,       0,  840.66,52.18995,161.9777
sgpcmbeC1.c1,2006,11 3:30:00,27 ,       0, 1431.93,77.20923,275.1826
sgpcmbeC1.c1,2006,11 4:30:00,27 ,       0, 1399.73,69.77672,268.8071
sgpcmbeC1.c1,2006,11 5:30:00,27 ,       0,899.0248,52.66135,176.1431
sgpcmbeC1.c1,2006,11 6:30:00,27 ,       0,254.9083,31.26348,67.94157
sgpcmbeC1.c1,2006,11 7:30:00,27 ,       0,239.1899, 29.0688,57.72067
sgpcmbeC1.c1,2006,11 8:30:00,28 ,       0, 430.136, 41.3784,104.7803
sgpcmbeC1.c1,2006,11 9:30:00,28 ,       0,395.2232,43.43095,103.2735
sgpcmbeC1.c1,2006,1110:30:00,28 ,       0, 309.573,25.23896,61.39686
sgpcmbeC1.c1,2006,1111:30:00,28 ,       0,188.6969,  20.688,48.89792
sgpcmbeC1.c1,2006,1112:30:00,28 ,       0,250.4753,20.96974, 54.1463
sgpcmbeC1.c1,2006,1113:30:00,28 ,       0, 768.973,37.16811, 145.309
sgpcmbeC1.c1,2006,1114:30:00,28 ,       0,478.0538,26.45708,91.26622
sgpcmbeC1.c1,2006,1115:30:00,28 ,       0,585.0484,29.14124,109.8927
sgpcmbeC1.c1,2006,1116:30:00,27 ,       0,244.8712,18.25364,47.65993
sgpcmbeC1.c1,2006,1117:30:00,27 ,       0,646.2571,37.45314,122.9515
sgpcmbeC1.c1,2006,1118:30:00,26 ,       0,290.2614,37.24159,73.41939
sgpcmbeC1.c1,2006,1119:30:00,26 ,       0,248.8477,39.88732,66.08445
sgpcmbeC1.c1,2006,1120:30:00,26 ,       0,160.4204,26.64862,44.28404
sgpcmbeC1.c1,2006,1121:30:00,26 ,       0,201.4399,28.34453,51.60141
sgpcmbeC1.c1,2006,1122:30:00,26 ,       0,695.9785, 52.1956,139.8363
sgpcmbeC1.c1,2006,1123:30:00,26 ,       0,1118.002,64.48161,218.5674