datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2001,09 0:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,09 1:30:00,30 ,       0, 0.41595,0.023122,0.089846
sgpcmbeC1.c1,2001,09 2:30:00,30 ,       0,1.224529,0.040818,0.223567
sgpcmbeC1.c1,2001,09 3:30:00,30 ,       0,0.419508,0.013984,0.076591
sgpcmbeC1.c1,2001,09 4:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,09 5:30:00,30 ,       0,0.466863,0.028022, 0.09552
sgpcmbeC1.c1,2001,09 6:30:00,30 , 5.04387,51.82573,25.42055,13.57515
sgpcmbeC1.c1,2001,09 7:30:00,30 ,9.032915,240.9941,147.9732,70.22264
sgpcmbeC1.c1,2001,09 8:30:00,29 , 5.47324,463.9152,313.9275,133.8455
sgpcmbeC1.c1,2001,09 9:30:00,30 ,15.32337, 642.897,465.6113,178.0163
sgpcmbeC1.c1,2001,0910:30:00,30 ,50.84698,794.4232, 611.533, 208.084
sgpcmbeC1.c1,2001,0911:30:00,30 ,80.08128,881.9146,705.4373,216.9771
sgpcmbeC1.c1,2001,0912:30:00,30 ,274.1498,926.3753,738.8869,189.3761
sgpcmbeC1.c1,2001,0913:30:00,30 ,271.7535,878.2507,715.4174,155.6336
sgpcmbeC1.c1,2001,0914:30:00,30 ,104.1787,824.6293,617.6699,168.1416
sgpcmbeC1.c1,2001,0915:30:00,30 , 47.7449,647.0678,468.1322,162.7955
sgpcmbeC1.c1,2001,0916:30:00,30 ,4.756636,450.3897,296.6728,118.4376
sgpcmbeC1.c1,2001,0917:30:00,30 ,7.451406,239.0945,133.3983,57.67257
sgpcmbeC1.c1,2001,0918:30:00,30 ,3.402593,54.06056,17.24075,  14.532
sgpcmbeC1.c1,2001,0919:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,0920:30:00,30 ,       0,1.181323,0.039377,0.215679
sgpcmbeC1.c1,2001,0921:30:00,30 ,       0,0.360496,0.012017,0.065817
sgpcmbeC1.c1,2001,0922:30:00,30 ,       0,0.653584,0.025837,0.120619
sgpcmbeC1.c1,2001,0923:30:00,30 ,       0,0.626795,0.024984,0.115849