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 ,       0,26.89886,10.56325,8.803497
sgpcmbeC1.c1,2006,09 7:30:00,30 ,0.018972,80.05974,34.38994,26.11815
sgpcmbeC1.c1,2006,09 8:30:00,27 ,0.033899, 108.051,46.04154,29.27111
sgpcmbeC1.c1,2006,09 9:30:00,28 ,0.078935,207.8605,57.66362,49.92116
sgpcmbeC1.c1,2006,0910:30:00,30 ,0.136597,159.1316,49.73549,41.14498
sgpcmbeC1.c1,2006,0911:30:00,30 ,0.336459,292.9584,83.58402,93.18773
sgpcmbeC1.c1,2006,0912:30:00,30 ,0.298758,341.5222,88.96323,108.6978
sgpcmbeC1.c1,2006,0913:30:00,30 ,0.480532,279.8732,90.64201,88.98994
sgpcmbeC1.c1,2006,0914:30:00,30 ,0.377537, 320.551,84.48689,71.44577
sgpcmbeC1.c1,2006,0915:30:00,30 ,       0,219.8939,74.50737,53.66525
sgpcmbeC1.c1,2006,0916:30:00,30 ,0.219188,128.9409,60.35062,32.58195
sgpcmbeC1.c1,2006,0917:30:00,30 ,       0,96.79456,37.38611,21.28229
sgpcmbeC1.c1,2006,0918:30:00,30 ,       0,22.64754,5.750345,6.333513
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