datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2006,10 0:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,10 1:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,10 2:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,10 3:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,10 4:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,10 5:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,10 6:30:00,31 ,       0, 8.07728,1.604725,2.356821
sgpcmbeC1.c1,2006,10 7:30:00,31 ,       0,51.35978,21.65859,20.19837
sgpcmbeC1.c1,2006,10 8:30:00,30 ,0.033241,93.53139,35.88565,27.84984
sgpcmbeC1.c1,2006,10 9:30:00,30 ,0.008151,160.5151,35.22215,34.49015
sgpcmbeC1.c1,2006,1010:30:00,31 ,0.137036, 203.391,45.25969,50.14039
sgpcmbeC1.c1,2006,1011:30:00,31 ,0.147318,277.9529,31.98143, 62.2136
sgpcmbeC1.c1,2006,1012:30:00,31 ,0.119584,229.2559,36.84764,67.31473
sgpcmbeC1.c1,2006,1013:30:00,31 , 0.07587,238.0512,59.26688, 72.8767
sgpcmbeC1.c1,2006,1014:30:00,31 ,       0, 188.246,60.13331,52.92701
sgpcmbeC1.c1,2006,1015:30:00,31 ,       0, 123.415,53.96076,34.13151
sgpcmbeC1.c1,2006,1016:30:00,31 ,       0,77.63142,38.58419,23.06779
sgpcmbeC1.c1,2006,1017:30:00,31 ,       0,35.49361,15.13513,12.52784
sgpcmbeC1.c1,2006,1018:30:00,29 ,       0,0.413878, 0.03218,0.099402
sgpcmbeC1.c1,2006,1019:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,1020:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,1021:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,1022:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,1023:30:00,29 ,       0,       0,       0,       0