datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1997,09 0:30:00,28 ,0.293319,9.432491,2.598079,2.680547
sgpcmbeC1.c1,1997,09 1:30:00,28 ,0.452319,19.32871,3.642225,  5.1586
sgpcmbeC1.c1,1997,09 2:30:00,28 ,0.383961,16.18177,3.983544,4.658272
sgpcmbeC1.c1,1997,09 3:30:00,28 ,0.351767,14.15906,3.406239,3.362111
sgpcmbeC1.c1,1997,09 4:30:00,28 ,0.317693,18.56046,3.281048,4.035405
sgpcmbeC1.c1,1997,09 5:30:00,28 ,0.322896, 20.5349,4.430935,5.538455
sgpcmbeC1.c1,1997,09 6:30:00,28 ,0.420143,13.71455, 3.74983,3.844141
sgpcmbeC1.c1,1997,09 7:30:00,29 ,0.369482,14.33347,3.890142,3.880719
sgpcmbeC1.c1,1997,09 8:30:00,28 ,0.431866,15.50568,4.579294,3.759179
sgpcmbeC1.c1,1997,09 9:30:00,28 ,  0.8192,18.91232,4.628205, 4.21777
sgpcmbeC1.c1,1997,0910:30:00,28 ,0.617959,17.67532,4.961365,4.758937
sgpcmbeC1.c1,1997,0911:30:00,28 ,0.475782,22.03372,3.927805,4.413837
sgpcmbeC1.c1,1997,0912:30:00,28 , 0.82728,13.73303,2.870742,3.008352
sgpcmbeC1.c1,1997,0913:30:00,28 ,0.805897,12.74487, 2.81933,2.758527
sgpcmbeC1.c1,1997,0914:30:00,28 ,0.590091,12.45212,2.869712,2.798021
sgpcmbeC1.c1,1997,0915:30:00,27 ,0.576834,13.81751,3.608973,4.062387
sgpcmbeC1.c1,1997,0916:30:00,27 ,0.448325,10.68218,2.600565,2.424639
sgpcmbeC1.c1,1997,0917:30:00,27 ,0.707607,11.42637,3.319343, 2.70432
sgpcmbeC1.c1,1997,0918:30:00,27 ,0.716853,18.42333,3.400381,3.302376
sgpcmbeC1.c1,1997,0919:30:00,27 ,0.953424, 11.7985,3.090734,2.898671
sgpcmbeC1.c1,1997,0920:30:00,27 ,0.525178,13.84676,2.842241,3.237354
sgpcmbeC1.c1,1997,0921:30:00,27 ,0.454245,10.33641,2.460831,2.300979
sgpcmbeC1.c1,1997,0922:30:00,27 ,0.477253,9.093096,2.429452,2.482674
sgpcmbeC1.c1,1997,0923:30:00,27 ,0.344991,17.86754,3.204821,4.368465