datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2005,05 0:30:00,30 ,       0,193.7229,16.28418,39.54918
sgpcmbeC1.c1,2005,05 1:30:00,30 ,       0, 325.496, 31.7524,72.09492
sgpcmbeC1.c1,2005,05 2:30:00,29 ,       0,193.8737,15.74411,37.64733
sgpcmbeC1.c1,2005,05 3:30:00,29 ,       0,193.4029,21.78068,42.94915
sgpcmbeC1.c1,2005,05 4:30:00,29 ,       0,84.40615, 13.3795,22.18316
sgpcmbeC1.c1,2005,05 5:30:00,29 ,       0,286.6728,33.43553,67.62977
sgpcmbeC1.c1,2005,05 6:30:00,28 ,       0,220.8322,27.21485,53.62276
sgpcmbeC1.c1,2005,05 7:30:00,30 ,       0,184.1115,27.90254,51.57617
sgpcmbeC1.c1,2005,05 8:30:00,30 ,       0,447.8721,40.85584,100.9092
sgpcmbeC1.c1,2005,05 9:30:00,29 ,       0,171.8043,23.08759, 38.0747
sgpcmbeC1.c1,2005,0510:30:00,30 ,       0, 277.318,36.98117,66.45781
sgpcmbeC1.c1,2005,0511:30:00,31 ,       0,378.9888,34.43978, 79.8105
sgpcmbeC1.c1,2005,0512:30:00,31 ,       0,362.7886,  47.476,86.97151
sgpcmbeC1.c1,2005,0513:30:00,31 ,       0,342.3626,45.66952,79.44296
sgpcmbeC1.c1,2005,0514:30:00,31 ,       0,315.0279,39.25902,71.19513
sgpcmbeC1.c1,2005,0515:30:00,30 ,       0, 238.944,35.42043,65.77962
sgpcmbeC1.c1,2005,0516:30:00,30 ,       0,244.7104, 38.2376,71.37988
sgpcmbeC1.c1,2005,0517:30:00,30 ,       0,323.4199,35.71087,72.80726
sgpcmbeC1.c1,2005,0518:30:00,31 ,       0,181.1661,20.73715,43.68345
sgpcmbeC1.c1,2005,0519:30:00,30 ,       0,171.4923,22.06098,47.88474
sgpcmbeC1.c1,2005,0520:30:00,30 ,       0,184.9375,19.81014,46.56604
sgpcmbeC1.c1,2005,0521:30:00,30 ,       0,86.77834,12.24514,24.15384
sgpcmbeC1.c1,2005,0522:30:00,30 ,       0,158.7279,13.71485,32.85145
sgpcmbeC1.c1,2005,0523:30:00,30 ,       0,148.5599,10.76184,27.66637