datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2003,04 0:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,04 1:30:00,29 ,       0,0.012504,0.000431,0.002322
sgpcmbeC1.c1,2003,04 2:30:00,29 ,       0, 0.22196,0.007654,0.041217
sgpcmbeC1.c1,2003,04 3:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,04 4:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,04 5:30:00,30 ,       0,0.955177,0.158716,0.262767
sgpcmbeC1.c1,2003,04 6:30:00,30 ,0.624615,26.96345,14.02959,8.385691
sgpcmbeC1.c1,2003,04 7:30:00,30 , 5.46962,71.65121,50.20919, 21.0475
sgpcmbeC1.c1,2003,04 8:30:00,30 ,11.34038,117.6909,87.93747,32.78049
sgpcmbeC1.c1,2003,04 9:30:00,30 ,15.88513,153.6025,118.9985,43.50149
sgpcmbeC1.c1,2003,0410:30:00,30 ,8.299427,178.5758,137.3338,54.16844
sgpcmbeC1.c1,2003,0411:30:00,30 ,3.464223,194.0528,151.3146,59.81226
sgpcmbeC1.c1,2003,0412:30:00,30 ,7.338969,199.3908, 149.497,57.20457
sgpcmbeC1.c1,2003,0413:30:00,30 ,13.29421, 194.614, 154.508,49.23861
sgpcmbeC1.c1,2003,0414:30:00,30 ,9.628177,176.6091,135.7217,44.89332
sgpcmbeC1.c1,2003,0415:30:00,30 ,11.43444,148.5615,120.1274,35.96261
sgpcmbeC1.c1,2003,0416:30:00,30 ,11.44626,116.2808,93.69633,23.45434
sgpcmbeC1.c1,2003,0417:30:00,30 ,3.226977,77.31433,54.37164,16.54792
sgpcmbeC1.c1,2003,0418:30:00,30 ,1.674829,23.10254,14.52899,6.184054
sgpcmbeC1.c1,2003,0419:30:00,29 ,       0,0.693101,0.069744,0.142261
sgpcmbeC1.c1,2003,0420:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,0421:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,0422:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,0423:30:00,29 ,       0,       0,       0,       0