datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1998,05 0:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,05 1:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,05 2:30:00,31 ,       0,0.830677,0.026796,0.149194
sgpcmbeC1.c1,1998,05 3:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,05 4:30:00,31 ,       0,0.663348,0.040416,0.156734
sgpcmbeC1.c1,1998,05 5:30:00,31 ,0.988201,25.13395,10.76923,6.571819
sgpcmbeC1.c1,1998,05 6:30:00,31 ,23.06121,168.3733,105.2895,36.83348
sgpcmbeC1.c1,1998,05 7:30:00,31 ,22.29501,376.0172,255.2755, 97.8882
sgpcmbeC1.c1,1998,05 8:30:00,31 ,44.45961, 580.554,439.0412,138.3965
sgpcmbeC1.c1,1998,05 9:30:00,31 ,114.5295,759.4322,592.9998,166.7919
sgpcmbeC1.c1,1998,0510:30:00,31 ,208.5863,893.0999,723.2619,183.0375
sgpcmbeC1.c1,1998,0511:30:00,31 ,198.0553,981.4219,772.0015, 230.849
sgpcmbeC1.c1,1998,0512:30:00,31 ,232.9065,1003.945,799.3075,205.0864
sgpcmbeC1.c1,1998,0513:30:00,31 ,273.8513,967.4387,777.5945,174.2266
sgpcmbeC1.c1,1998,0514:30:00,31 ,243.4825, 880.602, 712.274,146.8767
sgpcmbeC1.c1,1998,0515:30:00,31 ,152.6399,732.9075,585.0597,142.2032
sgpcmbeC1.c1,1998,0516:30:00,31 ,116.6409,555.8401, 423.925,124.3904
sgpcmbeC1.c1,1998,0517:30:00,31 ,24.44792,350.3867,265.9973,82.17429
sgpcmbeC1.c1,1998,0518:30:00,31 ,7.116062,143.9457,99.13946,36.92035
sgpcmbeC1.c1,1998,0519:30:00,31 ,       0,26.32014,9.782675,5.429402
sgpcmbeC1.c1,1998,0520:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,0521:30:00,31 ,       0,0.151996,0.004903,0.027299
sgpcmbeC1.c1,1998,0522:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,0523:30:00,31 ,       0,       0,       0,       0