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 ,       0,17.53369,3.931651,4.495501
sgpcmbeC1.c1,2006,10 7:30:00,31 ,5.994401,  151.98,48.91208,34.43602
sgpcmbeC1.c1,2006,10 8:30:00,30 ,28.59639,327.4337,96.80547,61.95041
sgpcmbeC1.c1,2006,10 9:30:00,30 ,18.60827,489.2981, 141.436,93.89446
sgpcmbeC1.c1,2006,1010:30:00,31 ,44.68348,642.9852,167.2453,119.0886
sgpcmbeC1.c1,2006,1011:30:00,31 ,60.93354,715.1376,175.1216,140.0917
sgpcmbeC1.c1,2006,1012:30:00,31 ,47.88304,612.0041,158.7252,125.1384
sgpcmbeC1.c1,2006,1013:30:00,31 ,44.75445,597.0118,156.2271,120.3071
sgpcmbeC1.c1,2006,1014:30:00,31 ,59.50023,503.6321,140.6829,99.96826
sgpcmbeC1.c1,2006,1015:30:00,31 ,43.97748,401.4151,107.4745,71.11179
sgpcmbeC1.c1,2006,1016:30:00,31 ,14.41637,191.1429,65.90818,35.96338
sgpcmbeC1.c1,2006,1017:30:00,31 ,3.255255,  62.343,21.58074,15.45293
sgpcmbeC1.c1,2006,1018:30:00,29 ,       0,5.967691,0.367552,1.193089
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