datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2007,10 0:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,10 1:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,10 2:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,10 3:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,10 4:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,10 5:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,10 6:30:00,31 ,       0,8.719419, 1.51951,2.267658
sgpcmbeC1.c1,2007,10 7:30:00,31 ,0.013629, 128.511,59.90601,35.87473
sgpcmbeC1.c1,2007,10 8:30:00,31 ,0.104986,315.5326,178.3428, 99.4341
sgpcmbeC1.c1,2007,10 9:30:00,31 , 0.02824,493.0255,318.4905,154.9202
sgpcmbeC1.c1,2007,1010:30:00,31 ,0.013308, 626.809, 423.642,192.8244
sgpcmbeC1.c1,2007,1011:30:00,31 ,0.146764,706.7174,466.7536,243.5665
sgpcmbeC1.c1,2007,1012:30:00,31 ,0.315788,  728.79,462.8848,255.9158
sgpcmbeC1.c1,2007,1013:30:00,31 ,0.979843,688.6211,429.2155,230.6505
sgpcmbeC1.c1,2007,1014:30:00,31 ,3.011475,585.8438,366.3505,189.8812
sgpcmbeC1.c1,2007,1015:30:00,31 ,0.858795,438.5642,237.1155,136.9388
sgpcmbeC1.c1,2007,1016:30:00,31 ,0.012882,249.4131,115.7734,69.29253
sgpcmbeC1.c1,2007,1017:30:00,31 ,       0,69.69814,21.82844,19.11955
sgpcmbeC1.c1,2007,1018:30:00,31 ,       0,0.791933,0.111336,0.228609
sgpcmbeC1.c1,2007,1019:30:00,31 ,       0,0.686969, 0.02216,0.123383
sgpcmbeC1.c1,2007,1020:30:00,31 ,       0,0.102813,0.003317,0.018466
sgpcmbeC1.c1,2007,1021:30:00,31 ,       0, 0.05049,0.001629,0.009068
sgpcmbeC1.c1,2007,1022:30:00,31 ,       0,0.258284,0.010128,0.047128
sgpcmbeC1.c1,2007,1023:30:00,31 ,       0,       0,       0,       0