datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2003,01 0:30:00,29 ,0.332361,1.672815,0.987571,0.295216
sgpcmbeC1.c1,2003,01 1:30:00,29 ,0.326825,1.664234,0.986738,0.289015
sgpcmbeC1.c1,2003,01 2:30:00,28 ,0.373889,1.615988,0.966979,0.298357
sgpcmbeC1.c1,2003,01 3:30:00,28 ,0.384603,1.591724,0.970913,0.299397
sgpcmbeC1.c1,2003,01 4:30:00,28 ,0.393931,  1.4612,0.948851,0.281187
sgpcmbeC1.c1,2003,01 5:30:00,28 ,0.403505,1.446858,0.947195,0.266272
sgpcmbeC1.c1,2003,01 6:30:00,28 ,0.430984,1.411673,0.963237,0.264996
sgpcmbeC1.c1,2003,01 7:30:00,28 ,0.439798,1.573251,0.968195,0.283505
sgpcmbeC1.c1,2003,01 8:30:00,28 ,0.442076,1.694772,0.976796,0.297631
sgpcmbeC1.c1,2003,01 9:30:00,29 ,0.434599,1.429241,0.951624,0.275247
sgpcmbeC1.c1,2003,0110:30:00,29 ,0.426343,1.527364,0.953074, 0.27726
sgpcmbeC1.c1,2003,0111:30:00,29 ,0.408658,1.513206,0.952385,0.281181
sgpcmbeC1.c1,2003,0112:30:00,29 , 0.37187,1.610913,0.953283,0.287633
sgpcmbeC1.c1,2003,0113:30:00,29 ,0.385018,1.638622,0.958592,0.290645
sgpcmbeC1.c1,2003,0114:30:00,29 ,0.400898,1.630939,0.971238,0.290671
sgpcmbeC1.c1,2003,0115:30:00,29 ,0.409317,1.594363,0.976646, 0.27489
sgpcmbeC1.c1,2003,0116:30:00,29 ,0.450534,1.679973,0.990528,0.272732
sgpcmbeC1.c1,2003,0117:30:00,29 ,0.534239, 1.70399, 1.00903,0.273532
sgpcmbeC1.c1,2003,0118:30:00,29 ,0.525278,1.766942,1.032551,0.292847
sgpcmbeC1.c1,2003,0119:30:00,29 , 0.50617,1.673481,1.030566,0.291212
sgpcmbeC1.c1,2003,0120:30:00,29 , 0.49596,2.414765,1.057294,0.372214
sgpcmbeC1.c1,2003,0121:30:00,29 ,0.463877,2.767551,1.048929,0.421905
sgpcmbeC1.c1,2003,0122:30:00,29 ,0.427487,2.777715,1.046141, 0.42526
sgpcmbeC1.c1,2003,0123:30:00,29 ,0.387234,2.762729,1.045055,0.434595