datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2005,05 0:30:00,30 ,       0,206.3663, 21.1805,47.76358
sgpcmbeC1.c1,2005,05 1:30:00,30 ,       0,357.4022,36.43503,75.33079
sgpcmbeC1.c1,2005,05 2:30:00,29 ,       0,619.4623,40.38113,116.8978
sgpcmbeC1.c1,2005,05 3:30:00,29 ,       0, 293.644,34.70717, 70.5219
sgpcmbeC1.c1,2005,05 4:30:00,29 ,       0,1019.295,52.16264,188.2849
sgpcmbeC1.c1,2005,05 5:30:00,29 ,       0,295.7307,39.96443, 68.4404
sgpcmbeC1.c1,2005,05 6:30:00,28 ,       0,265.2104,35.92614,66.90539
sgpcmbeC1.c1,2005,05 7:30:00,30 ,       0,696.2111,53.68749,135.2078
sgpcmbeC1.c1,2005,05 8:30:00,30 ,       0,591.6763,54.61771,123.6037
sgpcmbeC1.c1,2005,05 9:30:00,29 ,       0, 239.048,38.13688,70.59568
sgpcmbeC1.c1,2005,0510:30:00,30 ,       0,1177.512,77.80996,221.5255
sgpcmbeC1.c1,2005,0511:30:00,31 ,       0,550.4142,53.26336,123.1798
sgpcmbeC1.c1,2005,0512:30:00,31 ,       0,713.7549,76.44217,156.3291
sgpcmbeC1.c1,2005,0513:30:00,31 ,       0,364.5768,61.97813,102.2301
sgpcmbeC1.c1,2005,0514:30:00,31 ,       0,392.0784,60.80274,103.8078
sgpcmbeC1.c1,2005,0515:30:00,30 ,       0,699.5888, 60.6994,141.4624
sgpcmbeC1.c1,2005,0516:30:00,30 ,       0,962.4611,71.53126,188.8093
sgpcmbeC1.c1,2005,0517:30:00,30 ,       0,1043.261,97.03711,240.4907
sgpcmbeC1.c1,2005,0518:30:00,31 ,       0,703.7028,83.35703, 191.586
sgpcmbeC1.c1,2005,0519:30:00,30 ,       0,253.0729,33.05801,69.38605
sgpcmbeC1.c1,2005,0520:30:00,30 ,       0,222.1144,20.61779,44.99203
sgpcmbeC1.c1,2005,0521:30:00,30 ,       0,182.4048,18.72865,38.76577
sgpcmbeC1.c1,2005,0522:30:00,30 ,       0,449.6184,25.89506,83.01716
sgpcmbeC1.c1,2005,0523:30:00,30 ,       0,171.2962,14.53572,32.06891