datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2006,08 0:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,08 1:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,08 2:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,08 3:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,08 4:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,08 5:30:00,31 ,       0,  10.538,1.354749,2.096763
sgpcmbeC1.c1,2006,08 6:30:00,31 , 15.9532,74.85098,38.01625,14.40089
sgpcmbeC1.c1,2006,08 7:30:00,31 ,23.24125,161.8469,99.43839,34.51627
sgpcmbeC1.c1,2006,08 8:30:00,31 ,34.01074,279.3652,154.0947,61.15125
sgpcmbeC1.c1,2006,08 9:30:00,31 ,98.35692,361.0232, 215.445,85.84603
sgpcmbeC1.c1,2006,0810:30:00,31 ,97.28044,454.8869,239.5021,108.1032
sgpcmbeC1.c1,2006,0811:30:00,31 ,101.1383,484.6484, 246.938,118.8252
sgpcmbeC1.c1,2006,0812:30:00,31 ,102.5161,568.6801,276.5915,124.1549
sgpcmbeC1.c1,2006,0813:30:00,31 ,99.95171,467.8049,267.0428,94.34425
sgpcmbeC1.c1,2006,0814:30:00,31 ,104.9153,448.8233,248.7938,81.50311
sgpcmbeC1.c1,2006,0815:30:00,31 ,27.41933,401.7606,218.5798,73.21919
sgpcmbeC1.c1,2006,0816:30:00,31 ,11.49132, 283.864,158.9788,51.61985
sgpcmbeC1.c1,2006,0817:30:00,31 ,12.94082,171.0342,106.1848,29.75649
sgpcmbeC1.c1,2006,0818:30:00,31 ,12.51093,89.15878,46.67484,18.49787
sgpcmbeC1.c1,2006,0819:30:00,31 ,       0,15.44553,3.104198,3.530822
sgpcmbeC1.c1,2006,0820:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,0821:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,0822:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,0823:30:00,31 ,       0,       0,       0,       0