datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1999,05 0:30:00,23 ,       0,177.1304,15.82195,37.39191
sgpcmbeC1.c1,1999,05 1:30:00,25 ,0.005758,170.3401,22.15599,44.41838
sgpcmbeC1.c1,1999,05 2:30:00,25 ,0.000467,179.5219,38.02767,58.51761
sgpcmbeC1.c1,1999,05 3:30:00,25 ,       0, 321.679,59.14967,104.5158
sgpcmbeC1.c1,1999,05 4:30:00,24 ,       0,  395.94,46.44131,99.02649
sgpcmbeC1.c1,1999,05 5:30:00,24 ,       0,630.7983,50.72298, 134.781
sgpcmbeC1.c1,1999,05 6:30:00,24 ,       0,926.8062, 67.4891,188.1655
sgpcmbeC1.c1,1999,05 7:30:00,25 ,       0,431.0442,44.40215,94.25754
sgpcmbeC1.c1,1999,05 8:30:00,25 ,       0,394.3629,49.34504,96.94723
sgpcmbeC1.c1,1999,05 9:30:00,24 ,       0,557.2505,52.96554,126.1522
sgpcmbeC1.c1,1999,0510:30:00,23 ,       0,345.7473,31.34835,76.99427
sgpcmbeC1.c1,1999,0511:30:00,23 ,       0,257.9202,35.50792,69.19276
sgpcmbeC1.c1,1999,0512:30:00,23 ,       0,711.6567,49.67019,147.4617
sgpcmbeC1.c1,1999,0513:30:00,24 ,       0, 651.011,42.22939, 131.363
sgpcmbeC1.c1,1999,0514:30:00,24 ,       0,323.1057,30.22208,66.42844
sgpcmbeC1.c1,1999,0515:30:00,25 ,       0,552.2949,49.67454,121.8924
sgpcmbeC1.c1,1999,0516:30:00,25 ,       0,602.3668,46.16763,124.9336
sgpcmbeC1.c1,1999,0517:30:00,25 ,       0,343.4842,41.41035,93.20776
sgpcmbeC1.c1,1999,0518:30:00,26 ,0.015863,165.0099,15.34031,31.93953
sgpcmbeC1.c1,1999,0519:30:00,26 ,0.275167,95.37939,21.28528,28.46748
sgpcmbeC1.c1,1999,0520:30:00,26 ,0.111902,455.6623, 32.6888,89.94159
sgpcmbeC1.c1,1999,0521:30:00,26 ,0.054093, 455.595,34.60922,99.80303
sgpcmbeC1.c1,1999,0522:30:00,24 ,       0,97.59196,14.58967,28.27389
sgpcmbeC1.c1,1999,0523:30:00,24 ,       0,231.7086,26.82454, 62.6843