datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2006,05 0:30:00,28 ,       0,1547.987,120.3596,332.7058
sgpcmbeC1.c1,2006,05 1:30:00,28 ,       0,1113.147,130.4357,291.5905
sgpcmbeC1.c1,2006,05 2:30:00,28 ,       0,1681.107,118.3576,340.7015
sgpcmbeC1.c1,2006,05 3:30:00,27 ,       0,229.8132,33.05444,61.58034
sgpcmbeC1.c1,2006,05 4:30:00,27 ,       0,1310.733,116.2608,288.2903
sgpcmbeC1.c1,2006,05 5:30:00,26 ,       0,914.1309,86.23063,204.9065
sgpcmbeC1.c1,2006,05 6:30:00,26 ,       0,534.6638,48.38844,123.1587
sgpcmbeC1.c1,2006,05 7:30:00,26 ,       0,469.1603,55.08685,132.3323
sgpcmbeC1.c1,2006,05 8:30:00,28 ,       0,526.4461,37.93851,105.8386
sgpcmbeC1.c1,2006,05 9:30:00,29 ,       0,580.1485,67.79813,160.0489
sgpcmbeC1.c1,2006,0510:30:00,29 ,       0,547.7088, 54.6703,133.6709
sgpcmbeC1.c1,2006,0511:30:00,29 ,       0,280.7893, 34.7099,73.20817
sgpcmbeC1.c1,2006,0512:30:00,30 ,       0,272.8819,40.62512, 69.4328
sgpcmbeC1.c1,2006,0513:30:00,30 ,       0,153.0469, 28.4841,44.16307
sgpcmbeC1.c1,2006,0514:30:00,30 ,       0,197.4848,  35.179,54.69215
sgpcmbeC1.c1,2006,0515:30:00,29 ,       0,393.3697, 30.3581,77.29232
sgpcmbeC1.c1,2006,0516:30:00,30 ,       0,510.4604,49.17381,128.0849
sgpcmbeC1.c1,2006,0517:30:00,30 ,       0,  220.42,23.93985,56.57434
sgpcmbeC1.c1,2006,0518:30:00,30 ,       0,166.4558,21.54909,44.10455
sgpcmbeC1.c1,2006,0519:30:00,29 ,       0,200.6863,25.25678,57.07358
sgpcmbeC1.c1,2006,0520:30:00,29 ,       0,2851.931,119.6642, 530.018
sgpcmbeC1.c1,2006,0521:30:00,29 ,       0,3380.792,144.0044,627.1142
sgpcmbeC1.c1,2006,0522:30:00,29 ,       0,3658.795,144.9619,677.7034
sgpcmbeC1.c1,2006,0523:30:00,28 ,       0,357.2131,28.85665,72.75206