datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1999,09 0:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,09 1:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,09 2:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,09 3:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,09 4:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,09 5:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,09 6:30:00,30 ,       0,30.91878,10.87186,6.644808
sgpcmbeC1.c1,1999,09 7:30:00,30 ,4.461661, 55.4283,18.51341,13.21234
sgpcmbeC1.c1,1999,09 8:30:00,30 ,2.426699,74.12733, 23.2985,20.15945
sgpcmbeC1.c1,1999,09 9:30:00,30 ,1.334666,113.3916,30.83577,29.92595
sgpcmbeC1.c1,1999,0910:30:00,30 , 0.65517, 95.7963,29.33283,27.19142
sgpcmbeC1.c1,1999,0911:30:00,30 ,0.475454,120.0775,40.86818,35.65555
sgpcmbeC1.c1,1999,0912:30:00,30 ,0.526221,187.3873,43.55939,40.13282
sgpcmbeC1.c1,1999,0913:30:00,30 ,0.357077,130.9101,44.01864,39.07329
sgpcmbeC1.c1,1999,0914:30:00,30 ,1.040187,123.9819,35.07697, 33.1366
sgpcmbeC1.c1,1999,0915:30:00,30 ,1.818374,72.61131,27.19278,19.56574
sgpcmbeC1.c1,1999,0916:30:00,30 ,2.686666,67.52091,24.28577, 18.6416
sgpcmbeC1.c1,1999,0917:30:00,30 ,5.778735,50.32215,19.90792, 12.0869
sgpcmbeC1.c1,1999,0918:30:00,30 ,       0,19.42229,10.21796,5.612353
sgpcmbeC1.c1,1999,0919:30:00,30 ,       0,0.691414,0.023047,0.126234
sgpcmbeC1.c1,1999,0920:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,0921:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,0922:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,0923:30:00,30 ,       0,       0,       0,       0