datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2004,12 0:30:00,27 ,       0, 154.889,8.581171, 29.5354
sgpcmbeC1.c1,2004,12 1:30:00,26 ,       0,281.2895,16.86599,57.52412
sgpcmbeC1.c1,2004,12 2:30:00,25 ,       0,16.42328,2.589159,3.621761
sgpcmbeC1.c1,2004,12 3:30:00,26 ,       0,139.1602,7.627252,26.96588
sgpcmbeC1.c1,2004,12 4:30:00,26 ,       0,142.6261,7.827677,27.62061
sgpcmbeC1.c1,2004,12 5:30:00,26 ,       0,149.1856,7.803409,28.95553
sgpcmbeC1.c1,2004,12 6:30:00,25 ,       0,118.9454,6.748806, 23.5112
sgpcmbeC1.c1,2004,12 7:30:00,24 ,       0,81.26756,5.533491,16.52508
sgpcmbeC1.c1,2004,12 8:30:00,25 ,       0,39.93982,3.148452,8.282682
sgpcmbeC1.c1,2004,12 9:30:00,27 ,       0, 22.1143,1.917908,4.545869
sgpcmbeC1.c1,2004,1210:30:00,26 ,       0,20.19201,2.095685,4.208519
sgpcmbeC1.c1,2004,1211:30:00,28 ,       0,47.01847,3.969985,9.267698
sgpcmbeC1.c1,2004,1212:30:00,28 ,       0,9.457056,2.224894,2.567912
sgpcmbeC1.c1,2004,1213:30:00,29 ,       0, 158.303,7.282844,29.13214
sgpcmbeC1.c1,2004,1214:30:00,27 ,       0,11.47097,1.861133,2.523159
sgpcmbeC1.c1,2004,1215:30:00,27 ,       0,13.51134,2.262735,2.890452
sgpcmbeC1.c1,2004,1216:30:00,27 ,       0,14.90299,3.357346,3.654623
sgpcmbeC1.c1,2004,1217:30:00,27 ,       0,13.82265,3.924593,3.518351
sgpcmbeC1.c1,2004,1218:30:00,27 ,       0,14.00433,3.323955,3.350739
sgpcmbeC1.c1,2004,1219:30:00,27 ,       0,13.18768,3.123438,3.105827
sgpcmbeC1.c1,2004,1220:30:00,27 ,       0,24.94031,3.826474, 5.06777
sgpcmbeC1.c1,2004,1221:30:00,28 ,       0,638.0151, 27.1984,119.8809
sgpcmbeC1.c1,2004,1222:30:00,27 ,       0,15.64943,3.936785,4.543361
sgpcmbeC1.c1,2004,1223:30:00,27 ,       0,24.21656,3.392447,4.917403