datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2004,06 0:30:00,29 ,       0,2.456285,1.209444,0.767225
sgpcmbeC1.c1,2004,06 1:30:00,29 ,       0,2.339206,1.234175,0.758965
sgpcmbeC1.c1,2004,06 2:30:00,30 ,       0,2.337073, 1.10413,0.735424
sgpcmbeC1.c1,2004,06 3:30:00,30 ,       0,2.478894,1.087855,0.726733
sgpcmbeC1.c1,2004,06 4:30:00,30 ,       0,2.346905,1.140093,0.716918
sgpcmbeC1.c1,2004,06 5:30:00,30 ,0.050888,15.24855,3.239214,4.682706
sgpcmbeC1.c1,2004,06 6:30:00,30 ,0.006529,142.3112,38.17478, 50.5857
sgpcmbeC1.c1,2004,06 7:30:00,30 ,0.014771,333.5867,90.52997,120.0751
sgpcmbeC1.c1,2004,06 8:30:00,29 ,       0,524.1442,182.0016,201.8583
sgpcmbeC1.c1,2004,06 9:30:00,28 ,0.029919, 697.861,271.0341,264.9635
sgpcmbeC1.c1,2004,0610:30:00,29 ,0.186028,834.5053,284.9973,309.4646
sgpcmbeC1.c1,2004,0611:30:00,28 ,0.022366,920.1107,357.9647,357.7777
sgpcmbeC1.c1,2004,0612:30:00,27 ,0.403651,  936.89,452.6361,370.4057
sgpcmbeC1.c1,2004,0613:30:00,28 ,0.042717,918.9271,418.5636,336.8626
sgpcmbeC1.c1,2004,0614:30:00,29 ,0.146027, 835.246,433.8199, 289.373
sgpcmbeC1.c1,2004,0615:30:00,28 ,0.248444,709.4877,395.7958, 234.306
sgpcmbeC1.c1,2004,0616:30:00,28 ,0.078598,542.5493,274.9878,183.5247
sgpcmbeC1.c1,2004,0617:30:00,28 ,0.873932,351.3812,176.6764,109.3203
sgpcmbeC1.c1,2004,0618:30:00,29 ,       0,156.7931,64.68584,50.02509
sgpcmbeC1.c1,2004,0619:30:00,29 ,0.036869,20.74021,5.867818,6.174902
sgpcmbeC1.c1,2004,0620:30:00,29 ,       0,2.201704,1.243703,0.772778
sgpcmbeC1.c1,2004,0621:30:00,28 ,       0,2.636388,1.362057,0.852717
sgpcmbeC1.c1,2004,0622:30:00,27 ,       0,2.522214,1.384139,0.786882
sgpcmbeC1.c1,2004,0623:30:00,27 ,       0,2.389639,1.390855,0.759365