datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2005,01 0:30:00,19 ,0.007086,0.079542,0.025456,0.015815
sgpcmbeC1.c1,2005,01 1:30:00,17 ,  0.0104,0.063455,0.026721,0.013366
sgpcmbeC1.c1,2005,01 2:30:00,16 ,0.010758,0.168397,0.037341,0.039412
sgpcmbeC1.c1,2005,01 3:30:00,15 , 0.01303,0.069927,0.026231,0.018283
sgpcmbeC1.c1,2005,01 4:30:00,16 , 0.01094,0.075371,0.027691,0.018084
sgpcmbeC1.c1,2005,01 5:30:00,16 ,0.010941,0.072322, 0.02712,0.019099
sgpcmbeC1.c1,2005,01 6:30:00,14 ,0.011468,0.084582, 0.03162,0.021468
sgpcmbeC1.c1,2005,01 7:30:00,14 ,0.011123,0.081102,0.025474, 0.01847
sgpcmbeC1.c1,2005,01 8:30:00,18 ,0.010874,0.054683,0.022751, 0.01215
sgpcmbeC1.c1,2005,01 9:30:00,18 ,0.010241,0.098254,0.022789,0.019809
sgpcmbeC1.c1,2005,0110:30:00,18 ,0.012173,0.085445,0.026536, 0.01691
sgpcmbeC1.c1,2005,0111:30:00,18 , 0.01077,0.050902,0.024659,0.011956
sgpcmbeC1.c1,2005,0112:30:00,20 ,0.013773,0.068908,0.023026, 0.01371
sgpcmbeC1.c1,2005,0113:30:00,21 ,0.012029,0.116494,0.032156,0.031948
sgpcmbeC1.c1,2005,0114:30:00,21 ,0.011685,0.099464, 0.02679,0.023091
sgpcmbeC1.c1,2005,0115:30:00,20 ,0.010542,0.063509,0.023928,0.016717
sgpcmbeC1.c1,2005,0116:30:00,20 ,0.011873,0.035991,0.023553,0.008389
sgpcmbeC1.c1,2005,0117:30:00,19 ,0.011588,0.075868,0.024441,0.016948
sgpcmbeC1.c1,2005,0118:30:00,20 ,0.010445,0.058334,0.023896,0.014487
sgpcmbeC1.c1,2005,0119:30:00,20 ,0.012017, 0.15765,0.029477,0.031773
sgpcmbeC1.c1,2005,0120:30:00,20 ,0.011227,0.094064,0.026118, 0.01923
sgpcmbeC1.c1,2005,0121:30:00,19 ,0.011864,0.099241,0.025945, 0.02221
sgpcmbeC1.c1,2005,0122:30:00,19 ,0.012351,0.063656,0.028066,0.017455
sgpcmbeC1.c1,2005,0123:30:00,18 ,0.010856,0.069104,0.024903,0.014469