datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2003,06 0:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,06 1:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,06 2:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,06 3:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,06 4:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,06 5:30:00,30 ,0.436537,35.31984,20.57639,10.38746
sgpcmbeC1.c1,2003,06 6:30:00,30 ,15.04107,194.5279,117.8967,54.50219
sgpcmbeC1.c1,2003,06 7:30:00,30 ,68.00483,403.8159, 257.188,110.3649
sgpcmbeC1.c1,2003,06 8:30:00,30 ,103.0669,608.2304,411.6428,163.7265
sgpcmbeC1.c1,2003,06 9:30:00,30 ,116.9982,784.9673,560.7225,212.0706
sgpcmbeC1.c1,2003,0610:30:00,30 ,144.6754, 921.668,657.3275,249.1653
sgpcmbeC1.c1,2003,0611:30:00,30 ,161.1543,1010.454,744.9706,251.5145
sgpcmbeC1.c1,2003,0612:30:00,30 ,261.3265,1046.612,791.6504,241.6794
sgpcmbeC1.c1,2003,0613:30:00,30 ,109.0898,1003.443, 761.719,243.7979
sgpcmbeC1.c1,2003,0614:30:00,30 ,120.2998,915.1266,689.3551,235.5359
sgpcmbeC1.c1,2003,0615:30:00,30 , 41.7613,778.6574, 577.871,208.3169
sgpcmbeC1.c1,2003,0616:30:00,30 ,53.30325,598.0655,433.9352,185.6943
sgpcmbeC1.c1,2003,0617:30:00,30 ,12.68832,394.6649,274.7176,116.2267
sgpcmbeC1.c1,2003,0618:30:00,30 ,0.270323,191.7983,124.7763,55.40021
sgpcmbeC1.c1,2003,0619:30:00,30 ,0.455921,68.92188,21.58271,12.98474
sgpcmbeC1.c1,2003,0620:30:00,30 ,       0, 5.55678,0.223535,1.015732
sgpcmbeC1.c1,2003,0621:30:00,30 ,       0,0.155028,0.005168,0.028304
sgpcmbeC1.c1,2003,0622:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,0623:30:00,30 ,       0,       0,       0,       0