datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2006,04 0:30:00,27 ,       0, 2.73319,0.101229,0.526003
sgpcmbeC1.c1,2006,04 1:30:00,26 ,       0,4.144441,0.159402,0.812792
sgpcmbeC1.c1,2006,04 2:30:00,27 ,       0,4.606932,0.170627,0.886604
sgpcmbeC1.c1,2006,04 3:30:00,27 ,       0,4.163821,0.154216,0.801328
sgpcmbeC1.c1,2006,04 4:30:00,27 ,       0,2.045038,0.087077,0.393653
sgpcmbeC1.c1,2006,04 5:30:00,30 ,       0,4.208194,0.479718,0.960526
sgpcmbeC1.c1,2006,04 6:30:00,30 ,0.232196,39.31689,15.42647, 10.1934
sgpcmbeC1.c1,2006,04 7:30:00,30 ,0.610438,84.36395, 50.5186,27.99133
sgpcmbeC1.c1,2006,04 8:30:00,30 ,0.795391,129.1133,89.16863,40.24432
sgpcmbeC1.c1,2006,04 9:30:00,30 ,1.306685, 165.092,121.0079, 48.9066
sgpcmbeC1.c1,2006,0410:30:00,30 ,5.273797,189.1232,141.3166,59.75541
sgpcmbeC1.c1,2006,0411:30:00,30 ,3.783369,203.5112,150.6073,64.64516
sgpcmbeC1.c1,2006,0412:30:00,30 ,6.690154,208.4555,165.9189,61.71267
sgpcmbeC1.c1,2006,0413:30:00,30 ,15.23506, 205.311,165.7013,52.89304
sgpcmbeC1.c1,2006,0414:30:00,30 ,12.06971,188.7586,144.2358,53.67215
sgpcmbeC1.c1,2006,0415:30:00,30 ,2.872814,160.7652,120.5846,49.44991
sgpcmbeC1.c1,2006,0416:30:00,30 ,1.153686, 124.027,90.01316,37.31016
sgpcmbeC1.c1,2006,0417:30:00,30 ,0.061911,78.96939,54.78686,23.41004
sgpcmbeC1.c1,2006,0418:30:00,30 ,       0,33.67635,16.41298,9.375363
sgpcmbeC1.c1,2006,0419:30:00,30 ,       0,3.155402, 0.31141,0.739226
sgpcmbeC1.c1,2006,0420:30:00,30 ,       0,3.245017,0.108167,0.592456
sgpcmbeC1.c1,2006,0421:30:00,29 ,       0,2.271909,0.079785,0.421677
sgpcmbeC1.c1,2006,0422:30:00,28 ,       0,2.740446,0.101071,0.517545
sgpcmbeC1.c1,2006,0423:30:00,29 ,       0,2.403617,0.144462,0.544942