datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2005,04 0:30:00,29 ,       0,502.1926,43.45514, 107.742
sgpcmbeC1.c1,2005,04 1:30:00,30 ,       0,482.1361,44.46573,101.0651
sgpcmbeC1.c1,2005,04 2:30:00,29 ,       0,271.7225,18.59259,51.30221
sgpcmbeC1.c1,2005,04 3:30:00,29 ,       0,140.0958,8.722666,25.91945
sgpcmbeC1.c1,2005,04 4:30:00,30 ,       0,403.4474,30.97902,88.17956
sgpcmbeC1.c1,2005,04 5:30:00,29 ,       0, 194.158, 15.9139,40.57757
sgpcmbeC1.c1,2005,04 6:30:00,29 ,       0,499.4956,29.30255,93.71045
sgpcmbeC1.c1,2005,04 7:30:00,29 ,       0,250.9714,20.99599,49.42171
sgpcmbeC1.c1,2005,04 8:30:00,29 ,       0,325.6658, 24.4723,62.60804
sgpcmbeC1.c1,2005,04 9:30:00,29 ,       0,262.0351,27.92864,62.23292
sgpcmbeC1.c1,2005,0410:30:00,30 ,       0,222.2922,31.26975,58.96479
sgpcmbeC1.c1,2005,0411:30:00,30 ,       0,347.0091,30.47876, 67.2091
sgpcmbeC1.c1,2005,0412:30:00,30 ,       0,371.4941,36.74385,76.97225
sgpcmbeC1.c1,2005,0413:30:00,29 ,       0,90.43118,20.03308,25.50329
sgpcmbeC1.c1,2005,0414:30:00,30 ,       0,252.2627,31.52919,65.22737
sgpcmbeC1.c1,2005,0415:30:00,30 ,       0,252.1723,28.68714, 55.7978
sgpcmbeC1.c1,2005,0416:30:00,30 ,       0,528.0546,32.56783,97.52772
sgpcmbeC1.c1,2005,0417:30:00,30 ,       0,140.6386,12.53269,26.49024
sgpcmbeC1.c1,2005,0418:30:00,30 ,       0,390.9202,23.95518,71.33237
sgpcmbeC1.c1,2005,0419:30:00,30 ,0.003229,401.2895,29.81594,75.99745
sgpcmbeC1.c1,2005,0420:30:00,30 ,0.144727,254.4078,23.70999,49.80494
sgpcmbeC1.c1,2005,0421:30:00,30 ,       0,229.4639,25.49734,47.33333
sgpcmbeC1.c1,2005,0422:30:00,30 ,       0, 419.926,36.21034,82.40104
sgpcmbeC1.c1,2005,0423:30:00,29 ,       0, 258.289,30.58285,65.89688