datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2001,05 0:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,05 1:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,05 2:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,05 3:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,05 4:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,05 5:30:00,31 ,       0,18.77487,8.879203,4.493789
sgpcmbeC1.c1,2001,05 6:30:00,31 ,       0, 45.6568,16.00558,10.17048
sgpcmbeC1.c1,2001,05 7:30:00,30 ,1.530516,101.4302,20.72358,21.33332
sgpcmbeC1.c1,2001,05 8:30:00,30 ,1.518263,132.5323,34.81478,36.86581
sgpcmbeC1.c1,2001,05 9:30:00,31 ,0.860625,116.5098,30.45057,28.42308
sgpcmbeC1.c1,2001,0510:30:00,31 ,0.809295,133.3163,45.08798,40.50919
sgpcmbeC1.c1,2001,0511:30:00,31 ,0.895607,189.8315,46.31802,47.97091
sgpcmbeC1.c1,2001,0512:30:00,31 ,0.816502,150.5313,48.14762,39.80825
sgpcmbeC1.c1,2001,0513:30:00,31 ,2.153953,202.8396,54.81881,56.38177
sgpcmbeC1.c1,2001,0514:30:00,31 ,1.103787,223.7089,61.03122,59.70482
sgpcmbeC1.c1,2001,0515:30:00,31 ,2.118123,189.8972,49.24414,47.90616
sgpcmbeC1.c1,2001,0516:30:00,30 ,2.736205,76.44884,30.97753,23.02361
sgpcmbeC1.c1,2001,0517:30:00,30 ,1.353207,55.09626,22.04276,14.86199
sgpcmbeC1.c1,2001,0518:30:00,31 ,2.210254,60.25736,19.55262,12.96534
sgpcmbeC1.c1,2001,0519:30:00,31 ,       0,17.30572,6.920782,4.455476
sgpcmbeC1.c1,2001,0520:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,0521:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,0522:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,0523:30:00,30 ,       0,       0,       0,       0