datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2005,10 0:30:00,25 ,       0,0.130247, 0.00521,0.026049
sgpcmbeC1.c1,2005,10 1:30:00,24 ,       0,0.072807,0.003034,0.014862
sgpcmbeC1.c1,2005,10 2:30:00,24 ,       0,0.202758,0.008448,0.041388
sgpcmbeC1.c1,2005,10 3:30:00,24 ,       0,0.112782,0.004699,0.023021
sgpcmbeC1.c1,2005,10 4:30:00,25 ,       0,       0,       0,       0
sgpcmbeC1.c1,2005,10 5:30:00,22 ,       0,0.083427,0.003792,0.017787
sgpcmbeC1.c1,2005,10 6:30:00,31 ,       0,6.723893,1.747646,1.660757
sgpcmbeC1.c1,2005,10 7:30:00,31 ,0.861692,25.68285,10.04336,6.395335
sgpcmbeC1.c1,2005,10 8:30:00,31 ,1.627487,32.96378,11.51493,7.606218
sgpcmbeC1.c1,2005,10 9:30:00,31 ,  1.2161,44.26244,11.93716, 10.2472
sgpcmbeC1.c1,2005,1010:30:00,31 ,1.884937,47.27694,13.31884,11.90507
sgpcmbeC1.c1,2005,1011:30:00,31 ,0.589664,42.31537,9.307717,11.14997
sgpcmbeC1.c1,2005,1012:30:00,31 ,0.609087, 42.1986,13.51357,14.08373
sgpcmbeC1.c1,2005,1013:30:00,31 ,3.488372, 46.3984,16.21648,14.66263
sgpcmbeC1.c1,2005,1014:30:00,31 ,1.275998, 48.4937,17.88145,15.12175
sgpcmbeC1.c1,2005,1015:30:00,31 ,0.345482,40.97012, 16.5531,11.54966
sgpcmbeC1.c1,2005,1016:30:00,31 ,0.413388,23.53019,12.74362,5.672523
sgpcmbeC1.c1,2005,1017:30:00,31 ,0.377362,13.36393,7.451442,3.477611
sgpcmbeC1.c1,2005,1018:30:00,22 ,       0,0.551774,0.076755,0.155593
sgpcmbeC1.c1,2005,1019:30:00,23 ,       0,       0,       0,       0
sgpcmbeC1.c1,2005,1020:30:00,21 ,       0,       0,       0,       0
sgpcmbeC1.c1,2005,1021:30:00,24 ,       0,0.094594,0.003941,0.019309
sgpcmbeC1.c1,2005,1022:30:00,21 ,       0,0.045065,0.002146,0.009834
sgpcmbeC1.c1,2005,1023:30:00,22 ,       0,       0,       0,       0