datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1997,02 0:30:00,26 ,       0, 333.871,38.14381,70.75241
sgpcmbeC1.c1,1997,02 1:30:00,27 ,       0, 287.979,45.28697,71.46341
sgpcmbeC1.c1,1997,02 2:30:00,26 ,       0,273.4367,49.67789,85.88672
sgpcmbeC1.c1,1997,02 3:30:00,27 ,       0,500.4747,67.59618,129.0891
sgpcmbeC1.c1,1997,02 4:30:00,27 ,       0,1034.919,87.82319,218.5633
sgpcmbeC1.c1,1997,02 5:30:00,28 ,       0,1172.173,108.1497, 251.381
sgpcmbeC1.c1,1997,02 6:30:00,28 ,       0,670.3204,70.00335,148.4982
sgpcmbeC1.c1,1997,02 7:30:00,28 ,       0,629.7192,56.40661,131.8952
sgpcmbeC1.c1,1997,02 8:30:00,28 ,       0,736.7202,82.68922,187.7278
sgpcmbeC1.c1,1997,02 9:30:00,27 ,       0,1306.974,97.61863,287.6687
sgpcmbeC1.c1,1997,0210:30:00,27 ,       0,826.6715,70.72979,179.7423
sgpcmbeC1.c1,1997,0211:30:00,27 ,       0,392.6077,50.92901,95.22021
sgpcmbeC1.c1,1997,0212:30:00,27 ,       0,349.1653,44.04131, 79.4074
sgpcmbeC1.c1,1997,0213:30:00,27 ,       0,547.5356,40.97916,105.8186
sgpcmbeC1.c1,1997,0214:30:00,27 ,0.018581,119.0916,23.69848,34.72673
sgpcmbeC1.c1,1997,0215:30:00,28 ,       0,760.9537,63.98405,149.6479
sgpcmbeC1.c1,1997,0216:30:00,28 ,       0, 589.163, 62.9922,126.8835
sgpcmbeC1.c1,1997,0217:30:00,28 ,0.033398,572.2199,78.86471,153.1864
sgpcmbeC1.c1,1997,0218:30:00,27 ,0.165421,1779.355,157.2665,433.9591
sgpcmbeC1.c1,1997,0219:30:00,26 ,0.008556,1402.159,88.24342,274.1363
sgpcmbeC1.c1,1997,0220:30:00,27 , 0.02151,1454.561,128.0289,347.2386
sgpcmbeC1.c1,1997,0221:30:00,27 ,0.001305,1673.668, 105.007,323.2585
sgpcmbeC1.c1,1997,0222:30:00,27 ,0.038785,1179.116,87.35899,230.5102
sgpcmbeC1.c1,1997,0223:30:00,27 ,0.004232,645.9745,77.27627,150.9772