datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2004,06 0:30:00,27 ,       0,272.6602,22.78262,62.14276
sgpcmbeC1.c1,2004,06 1:30:00,27 ,       0,283.8239,27.48082,59.06866
sgpcmbeC1.c1,2004,06 2:30:00,28 ,       0,378.8548,53.38759,90.15295
sgpcmbeC1.c1,2004,06 3:30:00,25 ,       0,274.2191,34.47749,74.99443
sgpcmbeC1.c1,2004,06 4:30:00,24 ,       0,154.2545,19.38083,40.81194
sgpcmbeC1.c1,2004,06 5:30:00,24 ,       0,372.2762,57.05924,98.02298
sgpcmbeC1.c1,2004,06 6:30:00,28 ,       0,256.8193,48.43588,70.13341
sgpcmbeC1.c1,2004,06 7:30:00,26 ,       0,431.4541,48.02733,97.15327
sgpcmbeC1.c1,2004,06 8:30:00,27 ,       0,366.1677,61.07729, 103.103
sgpcmbeC1.c1,2004,06 9:30:00,27 ,       0, 406.614,35.57068,82.73369
sgpcmbeC1.c1,2004,0610:30:00,27 ,       0,466.4498, 52.0756,103.1727
sgpcmbeC1.c1,2004,0611:30:00,29 ,       0,218.2014,44.41999,67.95097
sgpcmbeC1.c1,2004,0612:30:00,29 ,       0,308.6431,47.76907,84.87971
sgpcmbeC1.c1,2004,0613:30:00,30 ,       0,185.9326,37.82083,51.71893
sgpcmbeC1.c1,2004,0614:30:00,30 ,       0,254.0139,39.10723,62.50963
sgpcmbeC1.c1,2004,0615:30:00,29 ,       0,253.6734,35.76429,68.74632
sgpcmbeC1.c1,2004,0616:30:00,29 ,       0,257.6191,20.19951,47.74019
sgpcmbeC1.c1,2004,0617:30:00,29 ,       0,54.32735,9.557844,  14.469
sgpcmbeC1.c1,2004,0618:30:00,29 ,       0,88.67316, 9.03216,18.16406
sgpcmbeC1.c1,2004,0619:30:00,29 ,       0,242.6701,14.55636,45.16868
sgpcmbeC1.c1,2004,0620:30:00,30 ,       0,220.2418,23.68599,45.56202
sgpcmbeC1.c1,2004,0621:30:00,29 ,       0,238.9534, 31.7942,60.05193
sgpcmbeC1.c1,2004,0622:30:00,29 ,       0,225.8727,29.16677,59.26763
sgpcmbeC1.c1,2004,0623:30:00,28 ,       0,166.4581, 21.4014,42.30876