datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2005,02 0:30:00,27 ,       0,4179.824, 559.638,1179.513
sgpcmbeC1.c1,2005,02 1:30:00,26 ,       0, 3963.47,417.8855,947.8027
sgpcmbeC1.c1,2005,02 2:30:00,26 ,       0,3781.848,438.6242,1039.247
sgpcmbeC1.c1,2005,02 3:30:00,26 ,       0,2705.359,319.5858,812.5637
sgpcmbeC1.c1,2005,02 4:30:00,26 ,       0,2385.869,249.0408,646.3055
sgpcmbeC1.c1,2005,02 5:30:00,25 ,0.016567,3182.766,285.9594,738.1717
sgpcmbeC1.c1,2005,02 6:30:00,25 , 0.09762,3388.437,309.9285,752.5198
sgpcmbeC1.c1,2005,02 7:30:00,25 ,0.007339, 3020.58,384.6301,839.0497
sgpcmbeC1.c1,2005,02 8:30:00,26 ,       0,3105.003,342.7271,793.8052
sgpcmbeC1.c1,2005,02 9:30:00,27 ,       0,2965.501,255.6729, 665.902
sgpcmbeC1.c1,2005,0210:30:00,27 ,       0,3128.041,203.0586,633.3136
sgpcmbeC1.c1,2005,0211:30:00,27 ,       0, 2731.94,157.1856,525.6566
sgpcmbeC1.c1,2005,0212:30:00,27 ,       0,2000.009, 136.788,385.8655
sgpcmbeC1.c1,2005,0213:30:00,27 ,0.138262,1483.844,122.5762,295.1887
sgpcmbeC1.c1,2005,0214:30:00,27 ,0.050938,1678.243,167.5785,387.1763
sgpcmbeC1.c1,2005,0215:30:00,27 , 0.00765,868.2368,110.9503, 222.889
sgpcmbeC1.c1,2005,0216:30:00,27 ,0.042152,806.7841,99.72025,202.3695
sgpcmbeC1.c1,2005,0217:30:00,27 ,0.017355,3367.916,187.8377,644.7036
sgpcmbeC1.c1,2005,0218:30:00,27 ,0.035382,    2757,203.2585,543.1355
sgpcmbeC1.c1,2005,0219:30:00,27 ,       0,2633.246,263.4774,671.3841
sgpcmbeC1.c1,2005,0220:30:00,27 ,0.010447,3334.474,238.7391,716.4738
sgpcmbeC1.c1,2005,0221:30:00,27 ,       0,2161.942, 183.461,474.4113
sgpcmbeC1.c1,2005,0222:30:00,27 ,       0,  2749.9, 272.714,639.7448
sgpcmbeC1.c1,2005,0223:30:00,27 ,       0,3839.194,334.3955,897.6885