datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2003,05 0:30:00,31 ,       0,0.196434,0.006337,0.035281
sgpcmbeC1.c1,2003,05 1:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,05 2:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,05 3:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,05 4:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,05 5:30:00,31 ,0.108019,29.02301,10.63503,7.692051
sgpcmbeC1.c1,2003,05 6:30:00,31 ,1.643767,196.7945,98.05199,57.56218
sgpcmbeC1.c1,2003,05 7:30:00,31 ,0.265375,376.6814,230.0792,125.8144
sgpcmbeC1.c1,2003,05 8:30:00,31 ,14.90132,585.4298,385.7292,192.9388
sgpcmbeC1.c1,2003,05 9:30:00,31 ,85.89943,769.8212,532.9322,232.8602
sgpcmbeC1.c1,2003,0510:30:00,31 ,119.6728,911.1057,676.4499,264.4937
sgpcmbeC1.c1,2003,0511:30:00,31 ,155.7378,1000.433,728.0694,298.3269
sgpcmbeC1.c1,2003,0512:30:00,31 ,107.1725,1027.946,754.2271,338.1169
sgpcmbeC1.c1,2003,0513:30:00,31 ,99.33241,993.8495,709.6255,289.3401
sgpcmbeC1.c1,2003,0514:30:00,31 ,129.3089,901.1974,669.5126,239.2144
sgpcmbeC1.c1,2003,0515:30:00,31 ,130.8804,751.6801,572.4732, 190.824
sgpcmbeC1.c1,2003,0516:30:00,31 ,16.07747,564.7621,413.4738,157.2792
sgpcmbeC1.c1,2003,0517:30:00,31 ,37.65763,369.9316,277.4379,84.42172
sgpcmbeC1.c1,2003,0518:30:00,31 ,8.408021,153.9385,105.0787,35.50849
sgpcmbeC1.c1,2003,0519:30:00,31 ,0.445051,24.34278,9.719363,5.642914
sgpcmbeC1.c1,2003,0520:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,0521:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,0522:30:00,31 ,       0,1.177913,0.037997,0.211559
sgpcmbeC1.c1,2003,0523:30:00,31 ,       0,1.237424,0.039917,0.222248