datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2004,04 0:30:00,28 ,       0,1502.782,73.50508,286.0998
sgpcmbeC1.c1,2004,04 1:30:00,28 ,       0,834.8073,55.56387,167.9972
sgpcmbeC1.c1,2004,04 2:30:00,28 ,       0,491.0415,62.99897,150.6621
sgpcmbeC1.c1,2004,04 3:30:00,28 ,       0,653.3726,78.13396, 180.112
sgpcmbeC1.c1,2004,04 4:30:00,27 ,       0,451.9707,42.37571,108.2698
sgpcmbeC1.c1,2004,04 5:30:00,27 ,       0,604.1387,61.75097,152.1352
sgpcmbeC1.c1,2004,04 6:30:00,28 ,       0,1457.062,119.3747,311.3156
sgpcmbeC1.c1,2004,04 7:30:00,28 ,       0,1396.283,117.7369,287.6915
sgpcmbeC1.c1,2004,04 8:30:00,29 ,       0,640.4526,109.4883,198.7069
sgpcmbeC1.c1,2004,04 9:30:00,29 ,       0,621.6543,71.66969,136.0892
sgpcmbeC1.c1,2004,0410:30:00,29 ,       0,988.6302,60.79272,185.1255
sgpcmbeC1.c1,2004,0411:30:00,29 , 0.02654,1369.391, 83.1506,258.7428
sgpcmbeC1.c1,2004,0412:30:00,29 ,0.075077,601.5078, 74.8831,147.6949
sgpcmbeC1.c1,2004,0413:30:00,29 ,0.312754,300.4881,61.72336,94.45145
sgpcmbeC1.c1,2004,0414:30:00,29 ,0.174013,727.8148,67.34132,144.6102
sgpcmbeC1.c1,2004,0415:30:00,29 ,0.128592,1013.037,96.66902,218.5548
sgpcmbeC1.c1,2004,0416:30:00,29 ,0.111789,829.7247, 90.8204,199.2944
sgpcmbeC1.c1,2004,0417:30:00,29 ,0.051846,842.1125,85.26734,205.7566
sgpcmbeC1.c1,2004,0418:30:00,29 ,       0,1497.462,108.1541,303.9065
sgpcmbeC1.c1,2004,0419:30:00,28 ,0.003032,864.0958,85.92922,200.4005
sgpcmbeC1.c1,2004,0420:30:00,29 ,   0.185,1645.068,165.5572,425.9116
sgpcmbeC1.c1,2004,0421:30:00,29 ,0.042398,1247.001,128.9794,329.7538
sgpcmbeC1.c1,2004,0422:30:00,27 ,       0,1008.187,92.69936,260.4536
sgpcmbeC1.c1,2004,0423:30:00,28 ,       0,1128.262,113.1461,284.7441