datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2003,05 0:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,05 1:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,05 2:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,05 3:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,05 4:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,05 5:30:00,31 ,0.583435,20.40486,9.249753,4.473849
sgpcmbeC1.c1,2003,05 6:30:00,31 , 1.99585,44.49166, 18.6688, 10.3733
sgpcmbeC1.c1,2003,05 7:30:00,31 ,1.323002,68.00143, 22.5984, 18.6927
sgpcmbeC1.c1,2003,05 8:30:00,31 ,2.106791,84.97424,26.76592,21.82965
sgpcmbeC1.c1,2003,05 9:30:00,31 ,1.349661,119.6067,35.51532,33.02837
sgpcmbeC1.c1,2003,0510:30:00,31 ,1.061866,160.0704,42.27762,37.15192
sgpcmbeC1.c1,2003,0511:30:00,31 ,0.920422,181.6155,46.67853,41.76011
sgpcmbeC1.c1,2003,0512:30:00,31 ,1.126774,135.5046,41.68807, 34.2207
sgpcmbeC1.c1,2003,0513:30:00,31 ,0.978923,240.2411,43.26003,49.10145
sgpcmbeC1.c1,2003,0514:30:00,31 ,1.083132, 143.256,45.54267,34.07093
sgpcmbeC1.c1,2003,0515:30:00,31 ,1.262249,168.6707,31.65231,32.77483
sgpcmbeC1.c1,2003,0516:30:00,31 ,2.012214,93.51179,30.99688,25.97079
sgpcmbeC1.c1,2003,0517:30:00,31 , 3.09599,66.21136,26.26671,16.78455
sgpcmbeC1.c1,2003,0518:30:00,31 , 3.08844,62.15586,19.42472,10.68942
sgpcmbeC1.c1,2003,0519:30:00,31 ,1.239801,21.68234,9.954465,4.082288
sgpcmbeC1.c1,2003,0520:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,0521:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,0522:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,0523:30:00,31 ,       0,       0,       0,       0