datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1998,10 0:30:00,31 ,       0,0.154989,   0.005,0.027837
sgpcmbeC1.c1,1998,10 1:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,10 2:30:00,31 ,       0,0.746261,0.029385, 0.13629
sgpcmbeC1.c1,1998,10 3:30:00,31 ,       0,0.168642, 0.00544,0.030289
sgpcmbeC1.c1,1998,10 4:30:00,31 ,       0,0.108061,0.005469,0.022007
sgpcmbeC1.c1,1998,10 5:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,10 6:30:00,31 ,       0,12.42034,4.541918,3.642366
sgpcmbeC1.c1,1998,10 7:30:00,31 ,5.717161,158.1424,76.48623,41.70686
sgpcmbeC1.c1,1998,10 8:30:00,31 ,19.71504, 363.415,212.3448,108.9465
sgpcmbeC1.c1,1998,10 9:30:00,31 ,23.29494,542.0729,331.9696,  175.18
sgpcmbeC1.c1,1998,1010:30:00,31 ,12.70442,676.6224,413.5279,229.1882
sgpcmbeC1.c1,1998,1011:30:00,31 ,37.87997,782.7814,481.5102,245.3191
sgpcmbeC1.c1,1998,1012:30:00,31 ,55.65485,774.5512,505.2529,245.8103
sgpcmbeC1.c1,1998,1013:30:00,31 ,48.74355,729.2675,473.7834,209.2071
sgpcmbeC1.c1,1998,1014:30:00,31 , 44.2893,623.7679,389.7494,197.8286
sgpcmbeC1.c1,1998,1015:30:00,31 ,19.45411,466.8031,278.7392,149.5268
sgpcmbeC1.c1,1998,1016:30:00,31 ,8.044203,274.0799, 152.359,85.15442
sgpcmbeC1.c1,1998,1017:30:00,31 ,0.872985,74.61578,35.61362, 21.8164
sgpcmbeC1.c1,1998,1018:30:00,31 ,       0,6.812464,0.531058, 1.30912
sgpcmbeC1.c1,1998,1019:30:00,31 ,       0,0.163111,0.008821, 0.03179
sgpcmbeC1.c1,1998,1020:30:00,31 ,       0,1.633549,0.054382,0.293231
sgpcmbeC1.c1,1998,1021:30:00,31 ,       0,0.293137,0.017752,0.068871
sgpcmbeC1.c1,1998,1022:30:00,31 ,       0,1.318215,0.048354,0.237899
sgpcmbeC1.c1,1998,1023:30:00,31 ,       0, 1.01876,0.032863,0.182975