datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2006,07 0:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,07 1:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,07 2:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,07 3:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,07 4:30:00,26 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,07 5:30:00,27 ,0.009093,12.37461, 3.98371,3.191468
sgpcmbeC1.c1,2006,07 6:30:00,27 ,0.123092,51.28029,28.19975,15.91518
sgpcmbeC1.c1,2006,07 7:30:00,27 ,0.161084,109.2913,47.45726,25.44787
sgpcmbeC1.c1,2006,07 8:30:00,27 ,2.017354,156.8871,56.20261,36.45554
sgpcmbeC1.c1,2006,07 9:30:00,28 ,0.559572,246.9079,69.19625,60.59159
sgpcmbeC1.c1,2006,0710:30:00,28 ,0.417268,237.8301,51.54752,51.46593
sgpcmbeC1.c1,2006,0711:30:00,28 ,0.356132,276.0835,71.84361,86.76575
sgpcmbeC1.c1,2006,0712:30:00,28 ,0.908284,331.6901, 125.662,112.5656
sgpcmbeC1.c1,2006,0713:30:00,28 ,0.836531,346.1878,109.9985,115.6393
sgpcmbeC1.c1,2006,0714:30:00,28 ,0.484073,306.0414, 110.061,102.3657
sgpcmbeC1.c1,2006,0715:30:00,28 ,0.353097,250.2814,98.36085,81.26056
sgpcmbeC1.c1,2006,0716:30:00,28 ,0.173192, 183.831,71.61093,43.77846
sgpcmbeC1.c1,2006,0717:30:00,28 ,       0,108.7517,54.67265,22.07397
sgpcmbeC1.c1,2006,0718:30:00,28 ,0.098461,60.98647, 37.5198,14.87902
sgpcmbeC1.c1,2006,0719:30:00,28 ,       0,18.27297,8.499556,4.828291
sgpcmbeC1.c1,2006,0720:30:00,26 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,0721:30:00,24 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,0722:30:00,26 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,0723:30:00,27 ,       0,       0,       0,       0