datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2006,04 0:30:00,30 ,       0,336.0646,28.50143,71.65202
sgpcmbeC1.c1,2006,04 1:30:00,30 ,       0,386.2785, 44.4597,99.18151
sgpcmbeC1.c1,2006,04 2:30:00,30 ,       0,389.7411,34.97579, 86.9341
sgpcmbeC1.c1,2006,04 3:30:00,30 ,       0,238.7449, 25.9662,60.74384
sgpcmbeC1.c1,2006,04 4:30:00,30 ,       0,170.5419, 23.3759,52.60703
sgpcmbeC1.c1,2006,04 5:30:00,29 ,       0,343.3176,28.97362,75.18108
sgpcmbeC1.c1,2006,04 6:30:00,29 ,       0,858.9422,65.83149,173.5615
sgpcmbeC1.c1,2006,04 7:30:00,29 ,-0.00367,1378.485,110.4936,317.9035
sgpcmbeC1.c1,2006,04 8:30:00,30 ,       0,2876.867,137.4168, 539.935
sgpcmbeC1.c1,2006,04 9:30:00,29 ,       0,1675.457,75.56132,311.5476
sgpcmbeC1.c1,2006,0410:30:00,29 ,       0,2537.077,119.8549,471.3649
sgpcmbeC1.c1,2006,0411:30:00,29 ,       0,550.2172,44.88512,119.2221
sgpcmbeC1.c1,2006,0412:30:00,30 ,       0,2109.804,94.11663,386.4428
sgpcmbeC1.c1,2006,0413:30:00,30 ,       0,1522.079,75.21251, 284.844
sgpcmbeC1.c1,2006,0414:30:00,30 ,       0,1159.599,74.62958,231.4021
sgpcmbeC1.c1,2006,0415:30:00,30 ,       0,  1601.5,129.8809,363.1198
sgpcmbeC1.c1,2006,0416:30:00,30 ,       0,2357.889,134.3379,448.4043
sgpcmbeC1.c1,2006,0417:30:00,30 ,       0,3308.079,129.0811,602.1045
sgpcmbeC1.c1,2006,0418:30:00,30 ,       0,2317.344,99.52615,425.0336
sgpcmbeC1.c1,2006,0419:30:00,30 ,       0,3898.696,153.4052,711.6288
sgpcmbeC1.c1,2006,0420:30:00,30 ,       0,3516.868, 135.853,640.7872
sgpcmbeC1.c1,2006,0421:30:00,30 ,       0,467.6894,37.48112,95.23091
sgpcmbeC1.c1,2006,0422:30:00,30 ,       0,227.2101,27.66859,62.56555
sgpcmbeC1.c1,2006,0423:30:00,30 ,       0,213.2196, 22.7328,54.38971