datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2007,05 0:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,05 1:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,05 2:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,05 3:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,05 4:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,05 5:30:00,29 ,       0,24.95846,7.921758,6.664218
sgpcmbeC1.c1,2007,05 6:30:00,29 ,0.888084,37.70948,16.22049,10.47666
sgpcmbeC1.c1,2007,05 7:30:00,29 ,1.601365,61.04693,19.37621,14.44798
sgpcmbeC1.c1,2007,05 8:30:00,29 ,4.188783,95.58799,31.55643,26.25411
sgpcmbeC1.c1,2007,05 9:30:00,29 ,2.547808,127.5198,49.57756,35.39286
sgpcmbeC1.c1,2007,0510:30:00,29 ,1.236754,144.9437,60.91384,42.11293
sgpcmbeC1.c1,2007,0511:30:00,29 ,1.755367,126.1615,51.94531,31.40035
sgpcmbeC1.c1,2007,0512:30:00,29 ,2.182412,219.8484,69.27876,48.46291
sgpcmbeC1.c1,2007,0513:30:00,30 ,1.505638,238.1281,68.01888,47.22353
sgpcmbeC1.c1,2007,0514:30:00,30 ,4.090909,102.8475,48.93508,26.24625
sgpcmbeC1.c1,2007,0515:30:00,30 ,2.408393, 110.826,38.80186, 23.8605
sgpcmbeC1.c1,2007,0516:30:00,30 ,4.868429,100.5819,34.26333,19.84131
sgpcmbeC1.c1,2007,0517:30:00,30 ,8.070745,65.72046,32.83436,15.46059
sgpcmbeC1.c1,2007,0518:30:00,30 ,5.035983,97.75354,22.78523,16.91173
sgpcmbeC1.c1,2007,0519:30:00,30 ,       0,16.77539,7.745128,3.991125
sgpcmbeC1.c1,2007,0520:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,0521:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,0522:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,0523:30:00,26 ,       0,       0,       0,       0