datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1999,02 0:30:00,26 ,       0,0.364198,0.015721, 0.07161
sgpcmbeC1.c1,1999,02 1:30:00,25 ,       0,0.050252, 0.00201, 0.01005
sgpcmbeC1.c1,1999,02 2:30:00,23 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,02 3:30:00,25 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,02 4:30:00,26 ,       0,0.083056,0.003194,0.016289
sgpcmbeC1.c1,1999,02 5:30:00,26 ,       0,0.287037,0.013102,0.056851
sgpcmbeC1.c1,1999,02 6:30:00,26 ,       0,0.059231,0.002278,0.011616
sgpcmbeC1.c1,1999,02 7:30:00,26 ,2.155529, 24.8238,12.32021,7.086328
sgpcmbeC1.c1,1999,02 8:30:00,26 ,15.40625,109.7992,54.75519,24.41964
sgpcmbeC1.c1,1999,02 9:30:00,26 ,34.79864,207.3362,92.98675,50.09339
sgpcmbeC1.c1,1999,0210:30:00,26 ,55.56726,285.7776,127.0989, 69.4413
sgpcmbeC1.c1,1999,0211:30:00,26 ,58.94985,347.1303,161.5182,98.45291
sgpcmbeC1.c1,1999,0212:30:00,26 ,60.40519,361.2225,181.1807,116.3056
sgpcmbeC1.c1,1999,0213:30:00,26 ,61.99487,362.3243,172.1208,105.2474
sgpcmbeC1.c1,1999,0214:30:00,26 ,43.36198,333.1319,141.5966,88.60291
sgpcmbeC1.c1,1999,0215:30:00,26 ,17.42463,256.1972,118.2638,64.40347
sgpcmbeC1.c1,1999,0216:30:00,26 ,17.92862,178.5714,88.92272,44.28974
sgpcmbeC1.c1,1999,0217:30:00,26 ,4.933462,78.18523, 38.9076,18.19241
sgpcmbeC1.c1,1999,0218:30:00,26 ,       0,7.523085,2.443862,2.344355
sgpcmbeC1.c1,1999,0219:30:00,26 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,0220:30:00,26 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,0221:30:00,26 ,       0,0.080151,0.006168,0.018649
sgpcmbeC1.c1,1999,0222:30:00,26 ,       0,0.277143,0.013694,0.055913
sgpcmbeC1.c1,1999,0223:30:00,26 ,       0,       0,       0,       0