datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2006,05 0:30:00,31 ,0.280835,4.644393,  1.5752,1.036813
sgpcmbeC1.c1,2006,05 1:30:00,31 ,0.286226,7.396857,2.084486,1.630504
sgpcmbeC1.c1,2006,05 2:30:00,31 ,0.449386,2.993173,1.633347,0.693571
sgpcmbeC1.c1,2006,05 3:30:00,31 ,0.268758, 5.82813,1.617325,1.140045
sgpcmbeC1.c1,2006,05 4:30:00,31 , 0.24495,4.907398,1.629096,1.284888
sgpcmbeC1.c1,2006,05 5:30:00,31 ,0.244015,4.799321,1.720059,1.067669
sgpcmbeC1.c1,2006,05 6:30:00,31 ,0.926194,8.709024,4.555359,2.395371
sgpcmbeC1.c1,2006,05 7:30:00,31 ,0.492019,11.61771,5.783025, 2.96177
sgpcmbeC1.c1,2006,05 8:30:00,31 ,0.552152,9.244559,5.053005,2.128839
sgpcmbeC1.c1,2006,05 9:30:00,31 ,0.934819,7.939383,4.527808,1.605362
sgpcmbeC1.c1,2006,0510:30:00,31 ,1.085093,8.890031,4.451087,1.905238
sgpcmbeC1.c1,2006,0511:30:00,31 ,1.274745, 8.31187,4.324615,1.750989
sgpcmbeC1.c1,2006,0512:30:00,31 ,1.738259,9.921634,4.259352,2.317812
sgpcmbeC1.c1,2006,0513:30:00,31 ,1.316102,11.12531,4.674777,2.863755
sgpcmbeC1.c1,2006,0514:30:00,31 ,0.739167,12.90496,4.828788,3.254532
sgpcmbeC1.c1,2006,0515:30:00,31 ,2.009075,9.200475,4.287682,2.188065
sgpcmbeC1.c1,2006,0516:30:00,31 ,1.278065,8.345199,3.766094,1.580162
sgpcmbeC1.c1,2006,0517:30:00,31 ,0.447769, 17.8456,4.268406,2.871411
sgpcmbeC1.c1,2006,0518:30:00,31 ,0.716361,10.24708,5.030116,2.436597
sgpcmbeC1.c1,2006,0519:30:00,31 ,0.756554,7.744472,4.217808,2.136402
sgpcmbeC1.c1,2006,0520:30:00,31 ,0.361419, 6.87651,2.351169,1.712606
sgpcmbeC1.c1,2006,0521:30:00,31 ,0.597037,5.135645,1.964867,1.185064
sgpcmbeC1.c1,2006,0522:30:00,31 ,0.457286,3.463444,1.549666,0.738537
sgpcmbeC1.c1,2006,0523:30:00,31 ,0.237271,8.136498,1.618317,1.419574