datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2007,11 0:30:00,24 ,       0,2.567437,0.225833,0.691342
sgpcmbeC1.c1,2007,11 1:30:00,27 ,       0,2.397101,0.204887,0.600936
sgpcmbeC1.c1,2007,11 2:30:00,24 ,       0,0.221419,0.010252,0.045258
sgpcmbeC1.c1,2007,11 3:30:00,24 ,       0,0.527894,0.028848,0.109255
sgpcmbeC1.c1,2007,11 4:30:00,25 ,       0,3.006967,0.211638,0.692498
sgpcmbeC1.c1,2007,11 5:30:00,25 ,       0,1.755404,0.071803, 0.35084
sgpcmbeC1.c1,2007,11 6:30:00,30 ,       0,0.425508,0.078447,0.119904
sgpcmbeC1.c1,2007,11 7:30:00,30 ,0.027248,49.68179,   15.68,14.14122
sgpcmbeC1.c1,2007,11 8:30:00,28 , 0.07489,204.5547,112.4869,62.50595
sgpcmbeC1.c1,2007,11 9:30:00,28 ,0.095085,367.6544,216.6953,121.0432
sgpcmbeC1.c1,2007,1110:30:00,29 , 0.22361,491.6216,306.5049,170.0974
sgpcmbeC1.c1,2007,1111:30:00,29 ,0.468643,564.9395,355.3939,189.3891
sgpcmbeC1.c1,2007,1112:30:00,29 ,0.198029, 579.197,391.8338,187.5154
sgpcmbeC1.c1,2007,1113:30:00,29 ,0.049133,534.1932,337.9832,185.1754
sgpcmbeC1.c1,2007,1114:30:00,29 ,0.008835,432.2716,263.2764,150.8945
sgpcmbeC1.c1,2007,1115:30:00,29 ,       0,273.6454,158.0101,93.03598
sgpcmbeC1.c1,2007,1116:30:00,30 , 0.01366,114.4526,49.83465,37.23539
sgpcmbeC1.c1,2007,1117:30:00,30 ,0.200639,9.167557,2.122389,2.008983
sgpcmbeC1.c1,2007,1118:30:00,29 ,       0,2.842993,0.535428,0.852701
sgpcmbeC1.c1,2007,1119:30:00,29 ,       0,2.414493,0.335705,0.649605
sgpcmbeC1.c1,2007,1120:30:00,28 ,       0,1.694319,0.213968,0.423566
sgpcmbeC1.c1,2007,1121:30:00,28 ,       0, 3.16476,0.247736,0.628824
sgpcmbeC1.c1,2007,1122:30:00,24 ,       0,0.705184,0.088673,0.197604
sgpcmbeC1.c1,2007,1123:30:00,27 ,       0,2.219573,0.150657,0.521243