datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1998,03 0:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,03 1:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,03 2:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,03 3:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,03 4:30:00,31 ,       0,0.170623,0.006785,0.031232
sgpcmbeC1.c1,1998,03 5:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,03 6:30:00,31 ,       0,11.01405,1.444278,2.921892
sgpcmbeC1.c1,1998,03 7:30:00,31 ,0.003335,66.37594,21.79539,23.10807
sgpcmbeC1.c1,1998,03 8:30:00,31 ,0.006422,89.57032,32.02339,31.66355
sgpcmbeC1.c1,1998,03 9:30:00,31 ,       0,208.5756,42.90844,50.71725
sgpcmbeC1.c1,1998,0310:30:00,31 ,0.167914,244.2997,51.64949,70.11749
sgpcmbeC1.c1,1998,0311:30:00,31 ,0.144621,239.8592,52.43649,74.80191
sgpcmbeC1.c1,1998,0312:30:00,31 ,0.056257,314.5517,53.02081,84.35571
sgpcmbeC1.c1,1998,0313:30:00,31 ,0.148825,296.7437,58.12949,93.16209
sgpcmbeC1.c1,1998,0314:30:00,31 ,  0.1127,237.6461,54.11511,71.60175
sgpcmbeC1.c1,1998,0315:30:00,30 ,0.039373, 205.225,37.88121,45.23988
sgpcmbeC1.c1,1998,0316:30:00,31 ,       0,126.0241,36.68819,34.27736
sgpcmbeC1.c1,1998,0317:30:00,31 ,0.016734,78.62905,31.66969,27.47982
sgpcmbeC1.c1,1998,0318:30:00,31 ,       0,28.33302,6.868373,8.439726
sgpcmbeC1.c1,1998,0319:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,0320:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,0321:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,0322:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,0323:30:00,29 ,       0,       0,       0,       0