datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1998,10 0:30:00,31 ,       0,0.681473,0.021983,0.122396
sgpcmbeC1.c1,1998,10 1:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,10 2:30:00,31 ,       0,1.563882,0.073836,0.305637
sgpcmbeC1.c1,1998,10 3:30:00,31 ,       0,0.743724,0.023991,0.133577
sgpcmbeC1.c1,1998,10 4:30:00,31 ,       0, 0.58831,0.034337,  0.1337
sgpcmbeC1.c1,1998,10 5:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,10 6:30:00,31 ,       0,16.74657,6.748082,4.740003
sgpcmbeC1.c1,1998,10 7:30:00,31 ,4.281192,79.39268,39.55865,20.78921
sgpcmbeC1.c1,1998,10 8:30:00,31 ,6.115777,125.7043,51.67695,29.16645
sgpcmbeC1.c1,1998,10 9:30:00,31 ,4.362653, 141.031,54.07156,32.03258
sgpcmbeC1.c1,1998,1010:30:00,31 ,7.918179,191.8687,61.91664,47.83956
sgpcmbeC1.c1,1998,1011:30:00,31 ,12.89738,161.3839,55.81403,50.88857
sgpcmbeC1.c1,1998,1012:30:00,31 ,4.863015,170.6138,55.25137,53.47637
sgpcmbeC1.c1,1998,1013:30:00,31 ,13.46121,219.8369, 69.7325,56.96259
sgpcmbeC1.c1,1998,1014:30:00,31 ,13.67648,178.4667,71.17268,46.88627
sgpcmbeC1.c1,1998,1015:30:00,31 ,5.995885,139.1418,57.28401,35.47229
sgpcmbeC1.c1,1998,1016:30:00,31 ,2.041921, 105.206,50.59091,24.13382
sgpcmbeC1.c1,1998,1017:30:00,31 ,2.127477, 51.8489,27.32303,14.98263
sgpcmbeC1.c1,1998,1018:30:00,31 ,       0,10.75682,  1.0582, 2.13714
sgpcmbeC1.c1,1998,1019:30:00,31 ,       0,0.718085,0.050737,0.163644
sgpcmbeC1.c1,1998,1020:30:00,31 ,       0,2.291933,0.086997,0.415625
sgpcmbeC1.c1,1998,1021:30:00,31 ,       0,0.982962, 0.06224,0.240968
sgpcmbeC1.c1,1998,1022:30:00,31 ,       0,2.366135,0.106623,0.451968
sgpcmbeC1.c1,1998,1023:30:00,31 ,       0,1.661705,0.053603,0.298451