datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1997,07 0:30:00,31 ,       0,0.337552,0.013384,0.061745
sgpcmbeC1.c1,1997,07 1:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1997,07 2:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1997,07 3:30:00,31 ,       0,0.324797,0.010477,0.058335
sgpcmbeC1.c1,1997,07 4:30:00,31 ,       0, 0.27981,0.009026,0.050255
sgpcmbeC1.c1,1997,07 5:30:00,31 ,0.306533,30.57815, 11.4145,8.340434
sgpcmbeC1.c1,1997,07 6:30:00,31 ,8.275714,185.8584,100.9089, 45.0596
sgpcmbeC1.c1,1997,07 7:30:00,31 ,9.007059,359.3457, 241.842,102.1929
sgpcmbeC1.c1,1997,07 8:30:00,31 ,30.78251,560.4332,413.2287,166.9503
sgpcmbeC1.c1,1997,07 9:30:00,31 ,40.03172,739.4446,576.7888,210.9851
sgpcmbeC1.c1,1997,0710:30:00,31 ,63.88074, 891.975,700.9498,226.2487
sgpcmbeC1.c1,1997,0711:30:00,31 ,177.8084,969.6151,800.1626,190.6156
sgpcmbeC1.c1,1997,0712:30:00,31 ,110.1412,1007.814,806.4661,253.6905
sgpcmbeC1.c1,1997,0713:30:00,31 ,63.84539,983.0676,815.0323,200.7396
sgpcmbeC1.c1,1997,0714:30:00,31 ,97.18185,903.3567,743.9168,201.7293
sgpcmbeC1.c1,1997,0715:30:00,31 ,68.44117,768.8197,634.6492,155.7281
sgpcmbeC1.c1,1997,0716:30:00,31 ,39.74049,642.6864,493.8562,136.8588
sgpcmbeC1.c1,1997,0717:30:00,31 ,26.03559,393.3759,304.2108,90.33557
sgpcmbeC1.c1,1997,0718:30:00,31 ,29.54627,194.5628,139.0355,46.03394
sgpcmbeC1.c1,1997,0719:30:00,31 ,11.50491,48.20972,23.72718,9.616447
sgpcmbeC1.c1,1997,0720:30:00,31 ,       0,0.152034, 0.00727,0.029919
sgpcmbeC1.c1,1997,0721:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1997,0722:30:00,31 ,       0, 0.13048,0.008004,0.031026
sgpcmbeC1.c1,1997,0723:30:00,31 ,       0,0.066016, 0.00213,0.011857