datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1997,01 0:30:00,31 ,0.252665, 2.30374,1.067763,0.592638
sgpcmbeC1.c1,1997,01 1:30:00,31 ,0.188951,2.335274,1.058305,0.596401
sgpcmbeC1.c1,1997,01 2:30:00,31 ,0.134366,2.264154,1.047449,0.576878
sgpcmbeC1.c1,1997,01 3:30:00,31 ,0.138204,2.245648,1.047103,0.553295
sgpcmbeC1.c1,1997,01 4:30:00,31 ,0.142481,2.257569, 1.02618,0.546391
sgpcmbeC1.c1,1997,01 5:30:00,31 ,0.136468,2.181609, 1.01853,0.533223
sgpcmbeC1.c1,1997,01 6:30:00,31 ,0.150589,2.152924,1.011048,0.513102
sgpcmbeC1.c1,1997,01 7:30:00,31 ,0.173533,1.938402,0.997518,0.475273
sgpcmbeC1.c1,1997,01 8:30:00,31 ,0.165094,1.823462,0.989226,0.464043
sgpcmbeC1.c1,1997,01 9:30:00,31 ,0.165111,1.853331,0.981108,0.446494
sgpcmbeC1.c1,1997,0110:30:00,31 ,0.183589,1.815583,0.958962,0.434026
sgpcmbeC1.c1,1997,0111:30:00,31 ,0.192381,1.775529,0.948648, 0.42246
sgpcmbeC1.c1,1997,0112:30:00,31 ,0.149469,1.825819,0.951663,0.437576
sgpcmbeC1.c1,1997,0113:30:00,31 ,0.159402,1.836709,0.983814,0.450849
sgpcmbeC1.c1,1997,0114:30:00,31 ,0.195693,2.198457, 1.01104, 0.47874
sgpcmbeC1.c1,1997,0115:30:00,30 , 0.20637,2.161241,1.036951, 0.47049
sgpcmbeC1.c1,1997,0116:30:00,30 , 0.22999,2.069291,1.068802,0.495332
sgpcmbeC1.c1,1997,0117:30:00,31 , 0.24618,2.025182, 1.04737,0.490738
sgpcmbeC1.c1,1997,0118:30:00,31 ,0.261722,2.005752,1.035826,0.481268
sgpcmbeC1.c1,1997,0119:30:00,31 ,0.242464,2.054745,1.032447,0.484838
sgpcmbeC1.c1,1997,0120:30:00,31 ,0.215792,3.234626,1.123308,0.678634
sgpcmbeC1.c1,1997,0121:30:00,31 ,0.208435,3.055221,1.110109,0.673444
sgpcmbeC1.c1,1997,0122:30:00,31 , 0.22125,  2.2725, 1.06691,0.596816
sgpcmbeC1.c1,1997,0123:30:00,31 ,0.271441,2.249744,1.062777,0.576845