datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2004,04 0:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2004,04 1:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2004,04 2:30:00,27 ,       0, 0.21468,0.007951,0.041315
sgpcmbeC1.c1,2004,04 3:30:00,27 ,       0,0.151867,0.009457,0.034728
sgpcmbeC1.c1,2004,04 4:30:00,28 ,       0,0.050858,0.001816,0.009611
sgpcmbeC1.c1,2004,04 5:30:00,28 ,       0, 4.87205,0.799815,1.415329
sgpcmbeC1.c1,2004,04 6:30:00,28 ,0.664998,109.9473,45.97029,33.06862
sgpcmbeC1.c1,2004,04 7:30:00,28 ,18.46015,312.4927,166.0466,96.73517
sgpcmbeC1.c1,2004,04 8:30:00,28 ,37.57138,526.4379,321.6566,169.3314
sgpcmbeC1.c1,2004,04 9:30:00,29 ,62.08562,700.5702,471.8394,222.4974
sgpcmbeC1.c1,2004,0410:30:00,29 ,54.83961,839.7297,628.8318,231.8531
sgpcmbeC1.c1,2004,0411:30:00,29 , 130.526,933.0512,692.1449,269.4715
sgpcmbeC1.c1,2004,0412:30:00,29 ,76.56818,970.5131,685.6439,304.0032
sgpcmbeC1.c1,2004,0413:30:00,29 ,141.3584,930.0129,624.7656,300.6411
sgpcmbeC1.c1,2004,0414:30:00,29 ,48.01141,830.3431,554.2586,269.4952
sgpcmbeC1.c1,2004,0415:30:00,29 ,31.10838,702.3867,462.8821,215.8647
sgpcmbeC1.c1,2004,0416:30:00,29 ,20.42326,502.3232,332.0375,145.1683
sgpcmbeC1.c1,2004,0417:30:00,29 ,6.713399,297.5944,172.0982,89.41784
sgpcmbeC1.c1,2004,0418:30:00,29 ,       0,92.90237,42.62966,25.53609
sgpcmbeC1.c1,2004,0419:30:00,29 ,       0,2.100971, 0.41146,0.661879
sgpcmbeC1.c1,2004,0420:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2004,0421:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,2004,0422:30:00,27 ,       0,0.480786,0.017807,0.092527
sgpcmbeC1.c1,2004,0423:30:00,27 ,       0,0.154536,0.005724,0.029741