datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2002,09 0:30:00,24 ,       0,69.48478,6.313154,15.07115
sgpcmbeC1.c1,2002,09 1:30:00,24 ,       0,60.30667,8.675328,17.99702
sgpcmbeC1.c1,2002,09 2:30:00,24 ,       0,226.9515,14.55081,46.75458
sgpcmbeC1.c1,2002,09 3:30:00,24 ,       0,399.8567,21.42266,81.19833
sgpcmbeC1.c1,2002,09 4:30:00,24 ,       0,711.8238, 36.2431,144.7356
sgpcmbeC1.c1,2002,09 5:30:00,22 ,       0,85.57104,8.188672,20.34773
sgpcmbeC1.c1,2002,09 6:30:00,22 ,       0,39.83979,6.627632, 13.2169
sgpcmbeC1.c1,2002,09 7:30:00,25 ,       0,543.5492, 27.4595,108.2198
sgpcmbeC1.c1,2002,09 8:30:00,25 ,       0,285.4847,17.27123,57.14774
sgpcmbeC1.c1,2002,09 9:30:00,25 ,       0,172.0355,12.90779,34.91213
sgpcmbeC1.c1,2002,0910:30:00,25 ,       0,122.9362,10.53189,25.85311
sgpcmbeC1.c1,2002,0911:30:00,26 ,       0,119.0701,12.24808,24.61975
sgpcmbeC1.c1,2002,0912:30:00,26 ,       0,195.4754,14.12969,38.06502
sgpcmbeC1.c1,2002,0913:30:00,25 ,       0, 257.073,15.83619, 50.7754
sgpcmbeC1.c1,2002,0914:30:00,26 ,       0,217.2678,17.14471, 46.7064
sgpcmbeC1.c1,2002,0915:30:00,25 ,       0,416.6001,21.34796,82.68892
sgpcmbeC1.c1,2002,0916:30:00,25 ,       0,327.7158,18.20022,65.05645
sgpcmbeC1.c1,2002,0917:30:00,25 ,       0,108.4486,8.937279,21.54596
sgpcmbeC1.c1,2002,0918:30:00,25 ,       0,102.5462,13.79696, 26.3898
sgpcmbeC1.c1,2002,0919:30:00,23 ,       0,87.36176,9.716188,21.16218
sgpcmbeC1.c1,2002,0920:30:00,24 ,       0,164.6873,12.94211,33.80631
sgpcmbeC1.c1,2002,0921:30:00,24 ,       0,29.73982,4.415697,8.060831
sgpcmbeC1.c1,2002,0922:30:00,24 ,       0,47.35294,5.036415,10.96802
sgpcmbeC1.c1,2002,0923:30:00,24 ,       0,39.56151,6.121371,11.39096