datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1997,05 0:30:00,31 ,       0,0.024352,0.001701,0.005642
sgpcmbeC1.c1,1997,05 1:30:00,31 ,       0,0.042747,0.001379,0.007678
sgpcmbeC1.c1,1997,05 2:30:00,31 ,       0,0.011027,0.000356, 0.00198
sgpcmbeC1.c1,1997,05 3:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1997,05 4:30:00,31 ,       0,0.008861,0.000286,0.001592
sgpcmbeC1.c1,1997,05 5:30:00,31 ,       0,11.51351,2.646311,3.423649
sgpcmbeC1.c1,1997,05 6:30:00,31 ,0.073339,122.3012,52.50688,48.63657
sgpcmbeC1.c1,1997,05 7:30:00,31 ,0.166653,303.6467,161.1353,118.1804
sgpcmbeC1.c1,1997,05 8:30:00,31 ,0.657044,   487.5,256.0047,202.2734
sgpcmbeC1.c1,1997,05 9:30:00,31 ,1.168625,660.7949,379.4988,280.3369
sgpcmbeC1.c1,1997,0510:30:00,30 ,2.342773,800.8266,497.3144,313.7037
sgpcmbeC1.c1,1997,0511:30:00,30 ,2.548462,893.7678,554.5501,333.2289
sgpcmbeC1.c1,1997,0512:30:00,30 ,1.941498,937.8753,581.5218,318.3379
sgpcmbeC1.c1,1997,0513:30:00,30 , 3.90802,898.6826,570.0071,288.3845
sgpcmbeC1.c1,1997,0514:30:00,30 , 1.48584, 794.002,482.9352,290.4597
sgpcmbeC1.c1,1997,0515:30:00,30 , 1.74231,633.3065,416.1143,227.1036
sgpcmbeC1.c1,1997,0516:30:00,30 ,0.403763,471.8879,294.4804,158.8079
sgpcmbeC1.c1,1997,0517:30:00,30 ,0.003387,286.1254,161.3185,92.82802
sgpcmbeC1.c1,1997,0518:30:00,30 ,       0,116.4852,49.04185,37.42931
sgpcmbeC1.c1,1997,0519:30:00,30 ,       0,9.919025,1.882221,2.456755
sgpcmbeC1.c1,1997,0520:30:00,30 ,       0,0.000808,0.000027,0.000148
sgpcmbeC1.c1,1997,0521:30:00,30 ,       0,0.007835,0.000261, 0.00143
sgpcmbeC1.c1,1997,0522:30:00,30 ,       0,0.043714,0.001457,0.007981
sgpcmbeC1.c1,1997,0523:30:00,30 ,       0,0.017657,0.001106, 0.00422