datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2005,01 0:30:00,30 ,       0,0.677453,0.076157,0.184425
sgpcmbeC1.c1,2005,01 1:30:00,31 ,       0,0.274043,0.022392, 0.06315
sgpcmbeC1.c1,2005,01 2:30:00,30 ,       0,0.067952,0.005195,0.015511
sgpcmbeC1.c1,2005,01 3:30:00,31 ,       0,0.220579,0.010068, 0.04119
sgpcmbeC1.c1,2005,01 4:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2005,01 5:30:00,31 ,       0,0.052385,0.004159,0.013126
sgpcmbeC1.c1,2005,01 6:30:00,31 ,       0,0.002601,0.000084,0.000467
sgpcmbeC1.c1,2005,01 7:30:00,31 ,       0, 3.58031, 0.67074,0.973807
sgpcmbeC1.c1,2005,01 8:30:00,31 ,       0,98.85983,32.00317,38.19593
sgpcmbeC1.c1,2005,01 9:30:00,31 ,0.010731,267.8679,  84.163,109.1703
sgpcmbeC1.c1,2005,0110:30:00,31 ,0.083305,417.8333,137.4887,172.2653
sgpcmbeC1.c1,2005,0111:30:00,31 ,0.209023,521.0479,174.2927,214.0361
sgpcmbeC1.c1,2005,0112:30:00,31 ,0.110336, 563.664,179.3904,221.1316
sgpcmbeC1.c1,2005,0113:30:00,31 ,0.049187,544.1719,178.9872,226.2129
sgpcmbeC1.c1,2005,0114:30:00,31 ,0.027855,463.8442, 150.316,186.2778
sgpcmbeC1.c1,2005,0115:30:00,31 ,       0,329.9727,101.1927,130.6907
sgpcmbeC1.c1,2005,0116:30:00,31 , 0.00057, 162.229,45.11897,55.32427
sgpcmbeC1.c1,2005,0117:30:00,31 ,       0,21.65721,4.803916,7.189129
sgpcmbeC1.c1,2005,0118:30:00,31 ,       0,0.171073,0.014819,0.037247
sgpcmbeC1.c1,2005,0119:30:00,31 ,       0,0.184649,0.014443, 0.04289
sgpcmbeC1.c1,2005,0120:30:00,31 ,       0,0.243018,0.020457,0.057696
sgpcmbeC1.c1,2005,0121:30:00,31 ,       0,0.299991,0.039092,0.089997
sgpcmbeC1.c1,2005,0122:30:00,30 ,       0,0.314075,0.030815,0.089782
sgpcmbeC1.c1,2005,0123:30:00,31 ,       0,0.255649,0.017369,0.055929