datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1997,01 0:30:00,31 ,       0,177.2325,27.81384,50.06673
sgpcmbeC1.c1,1997,01 1:30:00,31 ,       0,251.3781,32.53738,60.75857
sgpcmbeC1.c1,1997,01 2:30:00,31 ,       0,272.7497,27.68937,54.95576
sgpcmbeC1.c1,1997,01 3:30:00,31 ,       0,259.5393,33.63661,61.45797
sgpcmbeC1.c1,1997,01 4:30:00,31 ,       0,223.9179, 27.6821,52.04455
sgpcmbeC1.c1,1997,01 5:30:00,31 ,0.222511,215.1685,30.99151,54.67297
sgpcmbeC1.c1,1997,01 6:30:00,31 ,0.063298,269.8543,31.78682,62.07718
sgpcmbeC1.c1,1997,01 7:30:00,31 ,       0,248.8632,31.09213,58.63016
sgpcmbeC1.c1,1997,01 8:30:00,31 ,       0,250.1263,34.75297,65.56883
sgpcmbeC1.c1,1997,01 9:30:00,31 ,       0,272.6288,29.34957,65.68576
sgpcmbeC1.c1,1997,0110:30:00,31 ,       0,309.1245,26.77925,67.35088
sgpcmbeC1.c1,1997,0111:30:00,31 ,       0,274.9597,27.94045,65.85199
sgpcmbeC1.c1,1997,0112:30:00,31 ,       0,292.8336,28.76334,68.44791
sgpcmbeC1.c1,1997,0113:30:00,31 ,       0,356.4366,38.36657,86.08821
sgpcmbeC1.c1,1997,0114:30:00,31 ,       0,273.8428,28.18128,  59.695
sgpcmbeC1.c1,1997,0115:30:00,30 ,0.004414,225.3283,23.89163,50.81644
sgpcmbeC1.c1,1997,0116:30:00,30 ,0.001698,334.9297,25.71483, 70.0267
sgpcmbeC1.c1,1997,0117:30:00,31 ,0.009347,285.1492,26.65326,63.99668
sgpcmbeC1.c1,1997,0118:30:00,31 ,0.010225,262.7297,24.77676, 62.5821
sgpcmbeC1.c1,1997,0119:30:00,31 ,       0,312.0176,24.75921,61.84627
sgpcmbeC1.c1,1997,0120:30:00,31 ,       0, 526.556,37.28684,105.9945
sgpcmbeC1.c1,1997,0121:30:00,31 ,       0,663.8862, 40.3726,122.0289
sgpcmbeC1.c1,1997,0122:30:00,31 ,       0,556.0151,31.04125,100.7253
sgpcmbeC1.c1,1997,0123:30:00,31 ,       0,373.7019,24.81668,69.83711