datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2006,04 0:30:00,30 ,       0,335.5711,28.59812, 71.6062
sgpcmbeC1.c1,2006,04 1:30:00,30 ,       0,385.7524,42.86687, 97.3895
sgpcmbeC1.c1,2006,04 2:30:00,30 ,       0,390.2007,35.05059,86.98346
sgpcmbeC1.c1,2006,04 3:30:00,30 ,       0,239.3565,26.09491,60.91708
sgpcmbeC1.c1,2006,04 4:30:00,30 ,       0,171.6296,23.55133,52.73929
sgpcmbeC1.c1,2006,04 5:30:00,29 ,       0,343.6415,29.11576,75.25673
sgpcmbeC1.c1,2006,04 6:30:00,29 ,       0,859.4739,60.05364,166.6992
sgpcmbeC1.c1,2006,04 7:30:00,29 ,       0,1012.833,78.97012,220.4589
sgpcmbeC1.c1,2006,04 8:30:00,29 ,       0,640.5638,36.85099,126.1031
sgpcmbeC1.c1,2006,04 9:30:00,29 ,       0,847.8482,43.95949,159.2531
sgpcmbeC1.c1,2006,0410:30:00,29 ,       0,1178.683,71.06065,225.2884
sgpcmbeC1.c1,2006,0411:30:00,29 ,       0,550.7172,44.96422,119.3207
sgpcmbeC1.c1,2006,0412:30:00,30 ,       0,1677.804,79.79287,309.0109
sgpcmbeC1.c1,2006,0413:30:00,30 ,       0,1146.304, 62.7704,219.9118
sgpcmbeC1.c1,2006,0414:30:00,30 ,       0,1154.434,74.52952,230.5549
sgpcmbeC1.c1,2006,0415:30:00,30 ,       0,1201.316, 97.4127, 263.698
sgpcmbeC1.c1,2006,0416:30:00,29 ,       0,727.7285,50.71659, 152.177
sgpcmbeC1.c1,2006,0417:30:00,29 ,       0,193.9765,19.49531, 45.8187
sgpcmbeC1.c1,2006,0418:30:00,29 ,       0,357.7256,23.03283,73.26176
sgpcmbeC1.c1,2006,0419:30:00,29 ,       0, 406.861,24.24914,79.02695
sgpcmbeC1.c1,2006,0420:30:00,29 ,       0,266.0113,17.58712,52.39761
sgpcmbeC1.c1,2006,0421:30:00,30 ,       0,176.1336,24.29604,49.21085
sgpcmbeC1.c1,2006,0422:30:00,30 ,       0,226.9196,23.37015,52.23274
sgpcmbeC1.c1,2006,0423:30:00,30 ,       0,213.0236,22.81461, 54.3115