datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1999,09 0:30:00,30 ,       0,0.051555, 0.00418,0.012948
sgpcmbeC1.c1,1999,09 1:30:00,30 ,       0,0.108335,0.004784,0.020488
sgpcmbeC1.c1,1999,09 2:30:00,30 ,       0,0.068843, 0.00404,0.014215
sgpcmbeC1.c1,1999,09 3:30:00,30 ,       0,0.306241,0.012138,0.056436
sgpcmbeC1.c1,1999,09 4:30:00,30 ,       0,0.034275, 0.00141,0.006378
sgpcmbeC1.c1,1999,09 5:30:00,30 ,       0,0.206984,0.027726,0.055497
sgpcmbeC1.c1,1999,09 6:30:00,30 ,0.307879,31.43319,7.451016,8.289588
sgpcmbeC1.c1,1999,09 7:30:00,30 ,0.046373,187.2343,71.34433,65.82114
sgpcmbeC1.c1,1999,09 8:30:00,30 ,0.046455,383.0315, 165.877, 148.487
sgpcmbeC1.c1,1999,09 9:30:00,30 ,0.059418,555.7499,269.0266,209.1506
sgpcmbeC1.c1,1999,0910:30:00,30 ,0.071228,692.0308,347.4932,278.7321
sgpcmbeC1.c1,1999,0911:30:00,30 , 0.15802,779.5892,369.0846,304.2347
sgpcmbeC1.c1,1999,0912:30:00,30 ,0.384224,804.5911,380.0695,322.0273
sgpcmbeC1.c1,1999,0913:30:00,30 ,0.054451,766.0336,345.2285,293.9941
sgpcmbeC1.c1,1999,0914:30:00,30 ,0.132004,665.3174,330.7174,240.4274
sgpcmbeC1.c1,1999,0915:30:00,30 , 0.08593,528.7402, 263.722,191.4265
sgpcmbeC1.c1,1999,0916:30:00,30 ,       0,336.8045,159.9839, 117.537
sgpcmbeC1.c1,1999,0917:30:00,30 ,0.041058,146.7888,53.28745,45.12774
sgpcmbeC1.c1,1999,0918:30:00,30 ,0.002301,20.45574,4.505076,5.856608
sgpcmbeC1.c1,1999,0919:30:00,30 ,       0,0.190749,0.010055, 0.03699
sgpcmbeC1.c1,1999,0920:30:00,30 ,       0,0.053234,0.002737,0.010717
sgpcmbeC1.c1,1999,0921:30:00,30 ,       0,0.037929,0.002401,0.008182
sgpcmbeC1.c1,1999,0922:30:00,30 ,       0,0.294063,0.010305,0.053629
sgpcmbeC1.c1,1999,0923:30:00,30 ,       0, 0.10502,0.007196,0.023062