datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2005,05 0:30:00,30 ,1.017232,4.240172,2.604286,0.887489
sgpcmbeC1.c1,2005,05 1:30:00,30 ,1.042595,4.458329,2.643847, 0.93266
sgpcmbeC1.c1,2005,05 2:30:00,29 ,1.059308,4.235588,2.613744,0.916886
sgpcmbeC1.c1,2005,05 3:30:00,29 ,1.135319,4.154856,2.628769, 0.93104
sgpcmbeC1.c1,2005,05 4:30:00,29 ,1.139107,4.115428,2.604457,0.906004
sgpcmbeC1.c1,2005,05 5:30:00,29 ,1.132189,4.169316,2.585854, 0.89321
sgpcmbeC1.c1,2005,05 6:30:00,30 ,1.127527,4.367862,2.621424,0.927262
sgpcmbeC1.c1,2005,05 7:30:00,30 ,1.032282,3.951744,2.582976,0.877563
sgpcmbeC1.c1,2005,05 8:30:00,30 ,0.968685,3.818857,2.580251,0.849553
sgpcmbeC1.c1,2005,05 9:30:00,29 ,0.968054,3.829597,2.557389,0.826703
sgpcmbeC1.c1,2005,0510:30:00,30 ,0.960844,3.908831,2.626111,0.857379
sgpcmbeC1.c1,2005,0511:30:00,31 ,0.962422,4.041958,2.685551,0.848425
sgpcmbeC1.c1,2005,0512:30:00,31 ,1.027166,4.059135,2.683722,0.853784
sgpcmbeC1.c1,2005,0513:30:00,31 ,1.153334,4.049757,2.697333,0.846226
sgpcmbeC1.c1,2005,0514:30:00,31 ,1.177735,4.133461,2.713416,0.846589
sgpcmbeC1.c1,2005,0515:30:00,30 ,1.173098,4.512301,2.729218,0.874245
sgpcmbeC1.c1,2005,0516:30:00,30 ,1.122072,4.731472,2.763782,0.916415
sgpcmbeC1.c1,2005,0517:30:00,30 ,1.060119,4.884452,2.793168,0.909051
sgpcmbeC1.c1,2005,0518:30:00,30 ,1.042416,4.960763,2.801488, 0.93304
sgpcmbeC1.c1,2005,0519:30:00,30 ,0.958761, 4.83855,2.740956,0.861648
sgpcmbeC1.c1,2005,0520:30:00,30 ,0.938004,4.591051,2.698684,0.836505
sgpcmbeC1.c1,2005,0521:30:00,30 ,0.958563,4.363512,2.656732,0.842122
sgpcmbeC1.c1,2005,0522:30:00,30 , 0.97331,4.268788,2.672688,0.833579
sgpcmbeC1.c1,2005,0523:30:00,30 ,0.989257,4.304086,2.637266, 0.81776