datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2001,01 0:30:00,31 ,       0,0.036969,0.004713, 0.01064
sgpcmbeC1.c1,2001,01 1:30:00,31 ,       0, 0.16188,0.017324,0.042691
sgpcmbeC1.c1,2001,01 2:30:00,31 ,       0,0.108339,0.012302,0.024739
sgpcmbeC1.c1,2001,01 3:30:00,31 ,       0,0.084027,0.006444,0.018332
sgpcmbeC1.c1,2001,01 4:30:00,31 ,       0,0.239499,0.025912,0.055774
sgpcmbeC1.c1,2001,01 5:30:00,31 ,       0,0.092552,0.008255,0.021351
sgpcmbeC1.c1,2001,01 6:30:00,31 ,       0,0.009361, 0.00038,0.001697
sgpcmbeC1.c1,2001,01 7:30:00,31 ,       0,7.414398,2.354208,1.704425
sgpcmbeC1.c1,2001,01 8:30:00,31 ,       0,32.11809,11.70953,7.905604
sgpcmbeC1.c1,2001,01 9:30:00,31 ,0.381041, 37.9337,12.31673,9.180284
sgpcmbeC1.c1,2001,0110:30:00,31 ,1.677712,50.43546,11.56783,  9.3957
sgpcmbeC1.c1,2001,0111:30:00,31 ,1.875695,62.81609,10.96362,12.51435
sgpcmbeC1.c1,2001,0112:30:00,31 ,0.476632,103.2537, 10.8572,18.92213
sgpcmbeC1.c1,2001,0113:30:00,31 ,1.733365,33.73004, 10.1165,7.370629
sgpcmbeC1.c1,2001,0114:30:00,31 ,1.720011,104.9004,17.04905,19.35502
sgpcmbeC1.c1,2001,0115:30:00,31 ,2.853963,38.30445,13.29163,8.967505
sgpcmbeC1.c1,2001,0116:30:00,31 ,0.760491,31.42898, 11.4266,7.092404
sgpcmbeC1.c1,2001,0117:30:00,31 ,       0,11.59462, 5.16802,3.068417
sgpcmbeC1.c1,2001,0118:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,0119:30:00,31 ,       0,0.112132, 0.00517,0.021535
sgpcmbeC1.c1,2001,0120:30:00,31 ,       0,0.057263,0.003062, 0.01212
sgpcmbeC1.c1,2001,0121:30:00,31 ,       0,0.099265,0.005076,0.019161
sgpcmbeC1.c1,2001,0122:30:00,31 ,       0,0.062518, 0.00484,0.015615
sgpcmbeC1.c1,2001,0123:30:00,31 ,       0,0.021405,0.000847,0.003851