datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2006,04 0:30:00,26 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,04 1:30:00,25 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,04 2:30:00,26 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,04 3:30:00,26 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,04 4:30:00,26 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,04 5:30:00,29 ,       0, 9.26726,1.465998,2.296245
sgpcmbeC1.c1,2006,04 6:30:00,30 ,2.451709,33.66255,14.95488,6.529763
sgpcmbeC1.c1,2006,04 7:30:00,30 ,2.599888,45.93913,14.24257, 9.58406
sgpcmbeC1.c1,2006,04 8:30:00,30 ,2.538768, 86.8203,19.18816,21.12689
sgpcmbeC1.c1,2006,04 9:30:00,30 ,1.182905,93.77699, 25.8957,29.24624
sgpcmbeC1.c1,2006,0410:30:00,30 ,0.989286,159.8711,38.96725,39.94042
sgpcmbeC1.c1,2006,0411:30:00,30 ,0.724737,114.3299,31.72328,32.24083
sgpcmbeC1.c1,2006,0412:30:00,29 ,0.892913, 196.497,36.24418,42.75375
sgpcmbeC1.c1,2006,0413:30:00,30 ,0.487057,110.3452,33.64601, 36.4975
sgpcmbeC1.c1,2006,0414:30:00,30 ,0.786015,167.1652,25.04682,34.26637
sgpcmbeC1.c1,2006,0415:30:00,30 ,0.959788,96.58193,21.82583,23.49389
sgpcmbeC1.c1,2006,0416:30:00,30 ,2.110712,75.82365,22.32031,20.56614
sgpcmbeC1.c1,2006,0417:30:00,30 ,0.887998,63.64088,19.43258,15.53068
sgpcmbeC1.c1,2006,0418:30:00,30 ,       0,104.9132,21.14231,17.26017
sgpcmbeC1.c1,2006,0419:30:00,29 ,       0,13.34027,1.372456,2.708565
sgpcmbeC1.c1,2006,0420:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,0421:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,0422:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,0423:30:00,27 ,       0,       0,       0,       0