datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2004,11 0:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2004,11 1:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2004,11 2:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2004,11 3:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2004,11 4:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2004,11 5:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2004,11 6:30:00,30 ,       0,0.230018, 0.02169,0.066354
sgpcmbeC1.c1,2004,11 7:30:00,30 ,       0,11.84341,3.472461,3.573665
sgpcmbeC1.c1,2004,11 8:30:00,30 ,0.239751,20.22129, 5.22923,4.432741
sgpcmbeC1.c1,2004,11 9:30:00,30 ,0.269712,29.72727,7.920311,7.214025
sgpcmbeC1.c1,2004,1110:30:00,30 ,0.378453,36.25591,9.159996,8.596053
sgpcmbeC1.c1,2004,1111:30:00,30 ,0.743905,34.17145,8.489165,8.509004
sgpcmbeC1.c1,2004,1112:30:00,30 ,0.472825,37.01923,8.171608,8.418194
sgpcmbeC1.c1,2004,1113:30:00,30 ,0.948138, 32.5013,8.115836,8.567017
sgpcmbeC1.c1,2004,1114:30:00,30 ,0.603303,22.28852,7.339093,5.816784
sgpcmbeC1.c1,2004,1115:30:00,30 ,0.491108,21.41736,6.476991,4.980821
sgpcmbeC1.c1,2004,1116:30:00,30 ,0.174212,14.00138,5.108069,4.471254
sgpcmbeC1.c1,2004,1117:30:00,30 ,       0,4.576342,1.042009,1.493194
sgpcmbeC1.c1,2004,1118:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2004,1119:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2004,1120:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2004,1121:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2004,1122:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2004,1123:30:00,30 ,       0,       0,       0,       0