datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2007,09 0:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,09 1:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,09 2:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,09 3:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,09 4:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,09 5:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,09 6:30:00,30 ,       0,16.43731,6.221054,4.202467
sgpcmbeC1.c1,2007,09 7:30:00,30 ,2.171468,63.74644,36.33201,16.94428
sgpcmbeC1.c1,2007,09 8:30:00,30 ,11.89248,94.97728,67.21028,26.03474
sgpcmbeC1.c1,2007,09 9:30:00,30 , 29.7749,123.8473,94.24587,33.51138
sgpcmbeC1.c1,2007,0910:30:00,30 ,34.24099,143.8685,107.2353,39.62026
sgpcmbeC1.c1,2007,0911:30:00,30 ,19.11862,156.7118, 122.804,42.94885
sgpcmbeC1.c1,2007,0912:30:00,30 ,20.05817,158.8318,123.1236, 38.7595
sgpcmbeC1.c1,2007,0913:30:00,30 , 18.5663,150.2987,112.9462,34.73064
sgpcmbeC1.c1,2007,0914:30:00,30 ,22.74994,145.2918,103.3639,36.09011
sgpcmbeC1.c1,2007,0915:30:00,30 ,37.07908,119.1858,90.34739, 25.6346
sgpcmbeC1.c1,2007,0916:30:00,30 ,36.70014,88.19641,66.16948,16.06839
sgpcmbeC1.c1,2007,0917:30:00,30 ,8.669234,53.19101,29.89362,11.67254
sgpcmbeC1.c1,2007,0918:30:00,29 ,       0,16.10498,4.505472,4.911071
sgpcmbeC1.c1,2007,0919:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,0920:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,0921:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,0922:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,0923:30:00,29 ,       0,       0,       0,       0