datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2002,05 0:30:00,29 ,       0,428.0741,56.14988,102.3202
sgpcmbeC1.c1,2002,05 1:30:00,25 ,       0,398.1095, 60.3112,108.2003
sgpcmbeC1.c1,2002,05 2:30:00,25 ,       0,388.1144,45.82222,88.64339
sgpcmbeC1.c1,2002,05 3:30:00,24 ,       0,387.8586,44.32545, 97.2914
sgpcmbeC1.c1,2002,05 4:30:00,24 ,       0, 496.304, 47.7593,114.3317
sgpcmbeC1.c1,2002,05 5:30:00,24 ,       0,467.0993,44.90899,112.4557
sgpcmbeC1.c1,2002,05 6:30:00,25 ,       0,606.9645,47.34643,129.6488
sgpcmbeC1.c1,2002,05 7:30:00,26 ,       0,836.7941, 76.3666,222.8443
sgpcmbeC1.c1,2002,05 8:30:00,27 ,       0,386.3691,38.84889,78.62158
sgpcmbeC1.c1,2002,05 9:30:00,30 ,       0,371.2036,36.61749,78.30654
sgpcmbeC1.c1,2002,0510:30:00,31 ,       0,359.5803,45.77381,89.71419
sgpcmbeC1.c1,2002,0511:30:00,31 ,       0,580.6731,66.75945,127.7829
sgpcmbeC1.c1,2002,0512:30:00,31 ,       0,926.8694,120.7914,212.9874
sgpcmbeC1.c1,2002,0513:30:00,31 ,       0,938.4973,131.2249,220.1983
sgpcmbeC1.c1,2002,0514:30:00,30 ,       0,648.1558,71.97786,141.8435
sgpcmbeC1.c1,2002,0515:30:00,30 ,       0,591.8927,68.35642,132.2579
sgpcmbeC1.c1,2002,0516:30:00,31 ,       0,459.6854,53.73302,101.4579
sgpcmbeC1.c1,2002,0517:30:00,31 ,       0,551.3704,65.68294,142.5728
sgpcmbeC1.c1,2002,0518:30:00,31 ,       0,670.8062,55.63806, 138.943
sgpcmbeC1.c1,2002,0519:30:00,31 ,       0, 787.911,73.81298, 173.097
sgpcmbeC1.c1,2002,0520:30:00,30 ,       0,299.2141,36.55222,66.69763
sgpcmbeC1.c1,2002,0521:30:00,30 ,       0,220.5056,30.15287,58.16913
sgpcmbeC1.c1,2002,0522:30:00,30 ,       0,198.2826,28.37984,47.22496
sgpcmbeC1.c1,2002,0523:30:00,30 ,       0,369.6275,43.50652,89.77209