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 ,       0,21.92885,8.251597,5.832535
sgpcmbeC1.c1,2007,10 7:30:00,31 ,2.076803,77.29694,48.65563,16.35067
sgpcmbeC1.c1,2007,10 8:30:00,31 , 3.11462,101.3617,58.45839,18.53994
sgpcmbeC1.c1,2007,10 9:30:00,31 ,4.931493,142.1982,59.55345,29.37571
sgpcmbeC1.c1,2007,1010:30:00,31 ,2.469085,156.1213,51.26866,40.42721
sgpcmbeC1.c1,2007,1011:30:00,31 ,4.584306,182.2624,42.91417,56.37632
sgpcmbeC1.c1,2007,1012:30:00,31 ,3.176262,216.7362,43.37118,60.35857
sgpcmbeC1.c1,2007,1013:30:00,31 ,11.81575,188.0038,61.68597,63.10612
sgpcmbeC1.c1,2007,1014:30:00,31 ,31.95624,174.8183,64.39547,  43.078
sgpcmbeC1.c1,2007,1015:30:00,31 , 34.7279,160.2188,69.36692,32.18985
sgpcmbeC1.c1,2007,1016:30:00,31 ,16.38035,94.37139, 57.7048,17.18564
sgpcmbeC1.c1,2007,1017:30:00,31 ,       0,56.52261,34.00266,14.38472
sgpcmbeC1.c1,2007,1018:30:00,31 ,       0,4.466757,0.812362,1.283282
sgpcmbeC1.c1,2007,1019:30:00,31 ,       0,1.318121, 0.04252,0.236742
sgpcmbeC1.c1,2007,1020:30:00,31 ,       0,0.558456,0.018015,0.100302
sgpcmbeC1.c1,2007,1021:30:00,31 ,       0,0.391091,0.012616,0.070242
sgpcmbeC1.c1,2007,1022:30:00,31 ,       0,0.865787,0.053779,0.180846
sgpcmbeC1.c1,2007,1023:30:00,31 ,       0,       0,       0,       0