datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2006,09 0:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,09 1:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,09 2:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,09 3:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,09 4:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,09 5:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,09 6:30:00,30 ,0.014275,12.90987,6.749927,3.577433
sgpcmbeC1.c1,2006,09 7:30:00,30 ,0.894926, 56.6652,36.61266,18.89088
sgpcmbeC1.c1,2006,09 8:30:00,30 ,3.275242,102.0748,71.32914,34.10588
sgpcmbeC1.c1,2006,09 9:30:00,30 ,7.721211,138.7153, 104.227,41.06289
sgpcmbeC1.c1,2006,0910:30:00,30 ,22.03103,164.6818,128.2486,45.69513
sgpcmbeC1.c1,2006,0911:30:00,30 ,28.51612,179.1696,140.2909,43.16666
sgpcmbeC1.c1,2006,0912:30:00,30 ,37.29088,182.2463,143.5219,43.22396
sgpcmbeC1.c1,2006,0913:30:00,30 ,44.78416, 173.995,137.7672,41.13973
sgpcmbeC1.c1,2006,0914:30:00,30 ,24.25763,154.2014, 119.038,37.18633
sgpcmbeC1.c1,2006,0915:30:00,30 ,21.78299,  129.23,98.31691, 34.2665
sgpcmbeC1.c1,2006,0916:30:00,30 , 23.0448,88.48217,64.90378,20.11477
sgpcmbeC1.c1,2006,0917:30:00,30 ,10.10812,44.99604,30.20606,10.64539
sgpcmbeC1.c1,2006,0918:30:00,30 ,       0,16.40586,3.916413, 3.48897
sgpcmbeC1.c1,2006,0919:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,0920:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,0921:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,0922:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,0923:30:00,29 ,       0,       0,       0,       0