datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2003,05 0:30:00,31 ,       0,1.769877,0.116664,0.366283
sgpcmbeC1.c1,2003,05 1:30:00,31 ,       0,0.949965,0.139504,0.270992
sgpcmbeC1.c1,2003,05 2:30:00,31 ,       0,0.979615,0.062448,0.197178
sgpcmbeC1.c1,2003,05 3:30:00,30 ,       0,1.591547,0.087839,0.295472
sgpcmbeC1.c1,2003,05 4:30:00,31 ,       0,0.368619, 0.02453,0.087976
sgpcmbeC1.c1,2003,05 5:30:00,31 ,0.223109, 29.1175,10.85318,7.683138
sgpcmbeC1.c1,2003,05 6:30:00,31 ,2.707079,196.7945,98.09422,57.49133
sgpcmbeC1.c1,2003,05 7:30:00,31 ,1.047798,376.6814,230.1432, 125.694
sgpcmbeC1.c1,2003,05 8:30:00,31 ,15.28057,585.4298,385.7414,192.9146
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 ,0.853571,24.61254,10.15754,5.628499
sgpcmbeC1.c1,2003,0520:30:00,31 ,       0,1.847383,0.331031,0.495748
sgpcmbeC1.c1,2003,0521:30:00,31 ,       0,1.198566,0.150151,0.295298
sgpcmbeC1.c1,2003,0522:30:00,31 ,       0,2.506033,0.191837,0.511995
sgpcmbeC1.c1,2003,0523:30:00,31 ,       0,2.965847,0.178097,0.585009