datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1999,08 0:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,08 1:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,08 2:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,08 3:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,08 4:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,08 5:30:00,30 ,       0,9.896028,2.601803,2.214745
sgpcmbeC1.c1,1999,08 6:30:00,30 ,2.050672,29.65912,14.66496,6.318364
sgpcmbeC1.c1,1999,08 7:30:00,30 ,1.387534,70.25858,17.08527,15.27427
sgpcmbeC1.c1,1999,08 8:30:00,29 , 2.50681,74.85247,20.70902,22.35608
sgpcmbeC1.c1,1999,08 9:30:00,30 ,0.801365,107.4434,24.98799,28.91566
sgpcmbeC1.c1,1999,0810:30:00,30 ,1.265555,89.49286,20.10456,24.33838
sgpcmbeC1.c1,1999,0811:30:00,30 ,0.973472, 159.274,26.37587,36.22877
sgpcmbeC1.c1,1999,0812:30:00,30 ,0.890486,113.1775,31.19348,35.78595
sgpcmbeC1.c1,1999,0813:30:00,30 ,0.753168,135.0816,  32.171,39.09049
sgpcmbeC1.c1,1999,0814:30:00,30 ,1.103639,112.3982,25.78876,33.23628
sgpcmbeC1.c1,1999,0815:30:00,30 ,1.813905,95.51982,22.53617,25.71683
sgpcmbeC1.c1,1999,0816:30:00,30 , 2.78188,61.40601, 13.4756,13.13445
sgpcmbeC1.c1,1999,0817:30:00,30 ,4.167783,45.61987,12.32088,8.761578
sgpcmbeC1.c1,1999,0818:30:00,30 ,2.343842,31.38017,15.10012,6.515984
sgpcmbeC1.c1,1999,0819:30:00,29 ,       0,15.46871, 4.94433,3.565623
sgpcmbeC1.c1,1999,0820:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,0821:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,0822:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,0823:30:00,29 ,       0,       0,       0,       0