datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2001,06 0:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,06 1:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,06 2:30:00,26 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,06 3:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,06 4:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,06 5:30:00,30 ,0.900802,17.80833,12.25823,3.537225
sgpcmbeC1.c1,2001,06 6:30:00,30 , 4.10767,56.00938,17.13076, 11.5055
sgpcmbeC1.c1,2001,06 7:30:00,30 ,3.181098,67.36341,21.76007,20.05932
sgpcmbeC1.c1,2001,06 8:30:00,30 ,1.857197,119.6108,21.58441,25.57777
sgpcmbeC1.c1,2001,06 9:30:00,30 ,1.809489,95.99055,29.69101,33.57192
sgpcmbeC1.c1,2001,0610:30:00,30 ,0.626713,114.6006,37.20004,37.15295
sgpcmbeC1.c1,2001,0611:30:00,30 ,0.683652,150.6694,37.71919,39.07325
sgpcmbeC1.c1,2001,0612:30:00,30 ,1.331458,213.2395,42.99643,46.37608
sgpcmbeC1.c1,2001,0613:30:00,30 ,1.069473,185.7125,39.72264,46.81937
sgpcmbeC1.c1,2001,0614:30:00,30 ,1.131618,146.5018,32.45462,35.42054
sgpcmbeC1.c1,2001,0615:30:00,30 ,0.815817,75.12197,23.60163,24.07648
sgpcmbeC1.c1,2001,0616:30:00,30 ,1.753126, 61.7788,18.44831,16.53635
sgpcmbeC1.c1,2001,0617:30:00,30 ,4.030298,51.77113,16.16378, 13.0116
sgpcmbeC1.c1,2001,0618:30:00,30 ,6.645247, 35.6007,16.52578,8.229914
sgpcmbeC1.c1,2001,0619:30:00,30 ,       0,26.47514,12.12271,6.497541
sgpcmbeC1.c1,2001,0620:30:00,29 ,       0,0.001211,0.000042,0.000225
sgpcmbeC1.c1,2001,0621:30:00,30 ,       0,0.383814,0.012794,0.070074
sgpcmbeC1.c1,2001,0622:30:00,29 ,       0, 1.01255,0.034916,0.188026
sgpcmbeC1.c1,2001,0623:30:00,29 ,       0,       0,       0,       0