datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2005,05 0:30:00,31 ,       0,0.313006,0.025113, 0.07231
sgpcmbeC1.c1,2005,05 1:30:00,31 ,       0,0.073763,0.007002,0.017521
sgpcmbeC1.c1,2005,05 2:30:00,31 ,       0,0.227493,0.008574,0.040914
sgpcmbeC1.c1,2005,05 3:30:00,31 ,       0,0.049372,  0.0016,0.008866
sgpcmbeC1.c1,2005,05 4:30:00,31 ,       0,0.011441,0.000474,0.002096
sgpcmbeC1.c1,2005,05 5:30:00,31 ,0.000999,8.202862,1.901587,2.600128
sgpcmbeC1.c1,2005,05 6:30:00,31 ,0.057892,125.3469,39.89138,42.25035
sgpcmbeC1.c1,2005,05 7:30:00,31 ,0.256954,302.3128,123.9613,112.8363
sgpcmbeC1.c1,2005,05 8:30:00,31 ,0.176546,502.4908,214.2693,203.2483
sgpcmbeC1.c1,2005,05 9:30:00,31 ,0.213978,692.8704,310.2187,261.8382
sgpcmbeC1.c1,2005,0510:30:00,30 ,2.245056,818.5862,378.0871,297.5972
sgpcmbeC1.c1,2005,0511:30:00,31 ,1.694244,902.9698,402.8721,342.5509
sgpcmbeC1.c1,2005,0512:30:00,31 ,0.077477,920.2961,446.3599, 354.779
sgpcmbeC1.c1,2005,0513:30:00,31 ,0.189591,883.4105,461.0334,340.0884
sgpcmbeC1.c1,2005,0514:30:00,31 ,       0,786.5909,408.0625,297.4451
sgpcmbeC1.c1,2005,0515:30:00,31 ,       0,643.6843,335.9988,234.9259
sgpcmbeC1.c1,2005,0516:30:00,31 ,       0, 475.005,231.9034,171.6784
sgpcmbeC1.c1,2005,0517:30:00,31 ,0.001347,286.9919,131.2392,98.29631
sgpcmbeC1.c1,2005,0518:30:00,31 ,       0,111.8487,44.58958,33.80591
sgpcmbeC1.c1,2005,0519:30:00,31 ,       0,8.382572,1.551746,2.262956
sgpcmbeC1.c1,2005,0520:30:00,31 ,       0,0.232842,0.023362,0.051312
sgpcmbeC1.c1,2005,0521:30:00,31 ,       0,0.148881, 0.01554,0.040592
sgpcmbeC1.c1,2005,0522:30:00,31 ,       0, 0.11943,0.012123,0.031136
sgpcmbeC1.c1,2005,0523:30:00,31 ,       0,0.199196,0.017993,0.043174