datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2007,08 0:30:00,3 ,0.043778,0.106817, 0.06737,0.034381
sgpcmbeC1.c1,2007,08 1:30:00,3 ,0.045327,0.080761,0.063368,0.017725
sgpcmbeC1.c1,2007,08 2:30:00,3 , 0.02621,0.108568,0.060523,0.042862
sgpcmbeC1.c1,2007,08 3:30:00,3 , 0.04344,0.076712,0.055227,0.018636
sgpcmbeC1.c1,2007,08 4:30:00,3 ,0.026723, 0.04835,0.035024,0.011657
sgpcmbeC1.c1,2007,08 5:30:00,3 ,0.034635,0.045883,0.040626, 0.00566
sgpcmbeC1.c1,2007,08 6:30:00,3 ,0.035545,0.063422,0.052583,0.014937
sgpcmbeC1.c1,2007,08 7:30:00,3 ,0.040394,0.094082,0.062792,0.027927
sgpcmbeC1.c1,2007,08 8:30:00,3 ,0.042285,0.121581,0.073517,0.042243
sgpcmbeC1.c1,2007,08 9:30:00,3 ,0.034367,0.100115,0.057806,0.036711
sgpcmbeC1.c1,2007,0810:30:00,2 ,0.064058,0.104611,0.084335,0.028675
sgpcmbeC1.c1,2007,0811:30:00,2 ,0.131299,0.133301,  0.1323,0.001416
sgpcmbeC1.c1,2007,0812:30:00,2 ,0.120394,0.129771,0.125082, 0.00663
sgpcmbeC1.c1,2007,0813:30:00,2 ,0.105103,0.106986,0.106044,0.001331
sgpcmbeC1.c1,2007,0814:30:00,2 ,0.062425,0.106372,0.084398,0.031075
sgpcmbeC1.c1,2007,0815:30:00,2 ,0.068394,0.106472,0.087433,0.026926
sgpcmbeC1.c1,2007,0816:30:00,2 ,0.081788,0.106253, 0.09402,  0.0173
sgpcmbeC1.c1,2007,0817:30:00,2 ,0.089002,0.117872,0.103437,0.020415
sgpcmbeC1.c1,2007,0818:30:00,2 ,0.072723,0.134453,0.103588,0.043649
sgpcmbeC1.c1,2007,0819:30:00,2 , 0.06894,0.120098,0.094519,0.036174
sgpcmbeC1.c1,2007,0820:30:00,2 ,0.035408,0.101741,0.068575,0.046905
sgpcmbeC1.c1,2007,0821:30:00,2 ,0.093854,0.101137,0.097496, 0.00515
sgpcmbeC1.c1,2007,0822:30:00,2 ,0.079009,0.101297,0.090153, 0.01576
sgpcmbeC1.c1,2007,0823:30:00,2 ,0.054979,0.168475,0.111727,0.080253