datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2002,12 0:30:00,22 ,       0,0.194981,0.014386,0.047923
sgpcmbeC1.c1,2002,12 1:30:00,26 ,       0,0.198425,0.016459,0.048737
sgpcmbeC1.c1,2002,12 2:30:00,25 ,       0, 2.65222,0.126821,0.530054
sgpcmbeC1.c1,2002,12 3:30:00,23 ,       0,0.164535,0.012913,0.041557
sgpcmbeC1.c1,2002,12 4:30:00,29 ,       0,0.233051,0.021545,0.060326
sgpcmbeC1.c1,2002,12 5:30:00,30 ,       0,2.875362,0.153503,0.588872
sgpcmbeC1.c1,2002,12 6:30:00,31 ,       0,0.383013,0.040442,0.103466
sgpcmbeC1.c1,2002,12 7:30:00,31 ,       0,10.72386,1.600163,2.502605
sgpcmbeC1.c1,2002,12 8:30:00,31 ,       0,123.6802,32.60837,40.91404
sgpcmbeC1.c1,2002,12 9:30:00,28 , 0.07629,276.5072,104.6248,108.7393
sgpcmbeC1.c1,2002,1210:30:00,27 ,0.092701,403.7704,175.3216,176.3252
sgpcmbeC1.c1,2002,1211:30:00,27 ,0.080177,480.0335,201.7514,207.9489
sgpcmbeC1.c1,2002,1212:30:00,27 ,0.012119,506.5007,219.1342,220.0015
sgpcmbeC1.c1,2002,1213:30:00,28 ,0.009541,474.6201,178.3265, 197.659
sgpcmbeC1.c1,2002,1214:30:00,28 ,0.001312,380.8316,142.8553,162.3784
sgpcmbeC1.c1,2002,1215:30:00,30 ,0.000238,247.8641,80.63404,97.49507
sgpcmbeC1.c1,2002,1216:30:00,31 ,       0,98.10504,23.20459,31.61654
sgpcmbeC1.c1,2002,1217:30:00,31 ,0.095888,4.744216,1.301733,1.196107
sgpcmbeC1.c1,2002,1218:30:00,31 ,       0,1.994979,0.251959,0.524349
sgpcmbeC1.c1,2002,1219:30:00,31 ,       0,1.744145,0.173771,0.418912
sgpcmbeC1.c1,2002,1220:30:00,28 ,       0,2.490104,0.098459,0.469869
sgpcmbeC1.c1,2002,1221:30:00,29 ,       0, 2.92345,0.194135,0.633469
sgpcmbeC1.c1,2002,1222:30:00,28 ,       0,0.646983,0.047803,0.156095
sgpcmbeC1.c1,2002,1223:30:00,27 ,       0,1.159206,0.046109,0.222654