datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1998,10 0:30:00,31 ,       0, 1.79126,0.348744,0.398592
sgpcmbeC1.c1,1998,10 1:30:00,31 ,       0,1.114872,0.237366,0.287389
sgpcmbeC1.c1,1998,10 2:30:00,31 ,       0,0.917489,0.298187,0.266759
sgpcmbeC1.c1,1998,10 3:30:00,31 ,       0,1.607053,0.288061,0.371954
sgpcmbeC1.c1,1998,10 4:30:00,31 ,       0,1.301892,0.219388,0.301677
sgpcmbeC1.c1,1998,10 5:30:00,31 ,       0,1.078314, 0.24667,0.267971
sgpcmbeC1.c1,1998,10 6:30:00,31 , 0.15517,5.972918,1.256979,   1.429
sgpcmbeC1.c1,1998,10 7:30:00,31 ,0.049763,120.3475,34.37806,36.86518
sgpcmbeC1.c1,1998,10 8:30:00,31 ,0.051977,301.6959,123.4271,109.7501
sgpcmbeC1.c1,1998,10 9:30:00,31 ,0.021101,475.8418,211.0129, 186.859
sgpcmbeC1.c1,1998,1010:30:00,31 ,0.042157,611.5484,277.5106,242.6739
sgpcmbeC1.c1,1998,1011:30:00,31 ,0.196945,690.8707,322.8331,283.6257
sgpcmbeC1.c1,1998,1012:30:00,31 ,       0,707.3167,339.3274,267.9583
sgpcmbeC1.c1,1998,1013:30:00,31 ,0.009457,663.8073,301.2742,239.3688
sgpcmbeC1.c1,1998,1014:30:00,31 ,0.006805,561.5071,257.9107, 205.252
sgpcmbeC1.c1,1998,1015:30:00,31 ,       0,410.1587, 177.746,145.4103
sgpcmbeC1.c1,1998,1016:30:00,31 ,0.002861,227.1254, 91.8348,72.79273
sgpcmbeC1.c1,1998,1017:30:00,31 ,0.048342,48.11342,13.85982,15.09994
sgpcmbeC1.c1,1998,1018:30:00,31 ,       0,2.132202,0.698358,0.437049
sgpcmbeC1.c1,1998,1019:30:00,31 ,       0, 2.14802,0.604508, 0.47671
sgpcmbeC1.c1,1998,1020:30:00,31 ,0.007885,2.101669, 0.54798,0.486657
sgpcmbeC1.c1,1998,1021:30:00,31 ,0.000774,1.705906,0.496264,0.485189
sgpcmbeC1.c1,1998,1022:30:00,31 ,       0,1.485035, 0.42201,0.405371
sgpcmbeC1.c1,1998,1023:30:00,31 ,       0,1.380241,0.461401,0.458135