datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2007,08 0:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,08 1:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,08 2:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,08 3:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,08 4:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,08 5:30:00,31 ,       0,10.79067,2.708857,2.862293
sgpcmbeC1.c1,2007,08 6:30:00,31 ,2.347571, 49.8571, 35.4903, 14.1414
sgpcmbeC1.c1,2007,08 7:30:00,31 ,5.478779,124.0353,62.11449, 23.4252
sgpcmbeC1.c1,2007,08 8:30:00,31 ,17.84926,151.9406,65.55101,27.45064
sgpcmbeC1.c1,2007,08 9:30:00,31 ,16.74605,192.9516,72.93322,45.01284
sgpcmbeC1.c1,2007,0810:30:00,31 ,12.38162,247.8274,100.3028,80.49608
sgpcmbeC1.c1,2007,0811:30:00,31 ,15.62104,313.2315, 101.389,93.13546
sgpcmbeC1.c1,2007,0812:30:00,31 ,3.287088,337.6468,125.7622,114.4405
sgpcmbeC1.c1,2007,0813:30:00,31 ,13.02636,344.7775,125.1233, 98.3455
sgpcmbeC1.c1,2007,0814:30:00,31 ,26.31059,280.1673,99.88507,75.61298
sgpcmbeC1.c1,2007,0815:30:00,31 ,44.31012,251.0227,102.6957,66.20349
sgpcmbeC1.c1,2007,0816:30:00,31 ,15.94534,176.8727,80.19636,43.71102
sgpcmbeC1.c1,2007,0817:30:00,31 ,15.09425,104.2104,62.40276,15.65919
sgpcmbeC1.c1,2007,0818:30:00,31 ,8.509122,62.62193,42.39764,13.50922
sgpcmbeC1.c1,2007,0819:30:00,31 ,       0,14.34184,5.833468,4.883171
sgpcmbeC1.c1,2007,0820:30:00,26 ,       0,7.344829,0.282493,1.440439
sgpcmbeC1.c1,2007,0821:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,0822:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,0823:30:00,31 ,       0,       0,       0,       0