datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1997,08 0:30:00,31 ,       0,0.012868,0.000415,0.002311
sgpcmbeC1.c1,1997,08 1:30:00,31 ,       0,0.017355, 0.00056,0.003117
sgpcmbeC1.c1,1997,08 2:30:00,31 ,       0,0.025523,0.001155,0.004885
sgpcmbeC1.c1,1997,08 3:30:00,31 ,       0,0.018451,0.001598,0.004993
sgpcmbeC1.c1,1997,08 4:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1997,08 5:30:00,31 ,       0,0.797807,0.053632,0.156051
sgpcmbeC1.c1,1997,08 6:30:00,31 ,       0,59.97641, 17.5469,19.00367
sgpcmbeC1.c1,1997,08 7:30:00,31 ,0.003268,234.2039,97.25796,84.47015
sgpcmbeC1.c1,1997,08 8:30:00,31 ,0.004925,  425.06,197.8063, 162.456
sgpcmbeC1.c1,1997,08 9:30:00,31 ,       0,589.4261,307.9307,227.5894
sgpcmbeC1.c1,1997,0810:30:00,31 ,       0,727.1089,375.9508,266.3696
sgpcmbeC1.c1,1997,0811:30:00,31 ,       0,813.2018,448.9729,285.7878
sgpcmbeC1.c1,1997,0812:30:00,31 ,       0,841.5746, 464.781,295.5414
sgpcmbeC1.c1,1997,0813:30:00,31 ,0.001503,813.9842,437.0523,299.4124
sgpcmbeC1.c1,1997,0814:30:00,31 ,0.054304,728.0454,392.5614,267.6979
sgpcmbeC1.c1,1997,0815:30:00,31 ,0.258835,573.9777,323.5888,219.0383
sgpcmbeC1.c1,1997,0816:30:00,31 ,0.195091,430.8033,240.3787,148.9428
sgpcmbeC1.c1,1997,0817:30:00,31 ,0.061462,237.3122,135.2027,82.52543
sgpcmbeC1.c1,1997,0818:30:00,31 ,0.016617,69.12701,32.82065,22.37918
sgpcmbeC1.c1,1997,0819:30:00,31 ,       0,2.348166,0.500742,0.737409
sgpcmbeC1.c1,1997,0820:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1997,0821:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1997,0822:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1997,0823:30:00,31 ,       0,0.013799,0.000445,0.002478