datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2000,06 0:30:00,17 ,2.429474,5.642007,3.941162,0.839924
sgpcmbeC1.c1,2000,06 1:30:00,15 , 2.47842,5.632806,3.893115,0.867608
sgpcmbeC1.c1,2000,06 2:30:00,14 , 2.45198,4.893993,3.830639, 0.88062
sgpcmbeC1.c1,2000,06 3:30:00,16 ,2.257034,5.879393, 3.99255,1.085684
sgpcmbeC1.c1,2000,06 4:30:00,16 ,2.187932,5.183822, 3.85279,0.975945
sgpcmbeC1.c1,2000,06 5:30:00,16 ,2.276735,5.283937,3.922782,1.051365
sgpcmbeC1.c1,2000,06 6:30:00,15 ,2.344978,4.884908,3.759031,0.883886
sgpcmbeC1.c1,2000,06 7:30:00,17 ,2.397457,5.239788,3.940638,0.921135
sgpcmbeC1.c1,2000,06 8:30:00,17 ,2.408119,5.191008,3.754898,0.887999
sgpcmbeC1.c1,2000,06 9:30:00,19 ,2.319268,5.109451,3.878606, 0.88057
sgpcmbeC1.c1,2000,0610:30:00,19 ,2.074557,5.157446,3.863991,0.868782
sgpcmbeC1.c1,2000,0611:30:00,18 ,1.951252,5.417042,3.822709,0.888305
sgpcmbeC1.c1,2000,0612:30:00,19 ,1.529245,5.305727,3.698499,0.972655
sgpcmbeC1.c1,2000,0613:30:00,19 ,1.672589,5.150383,3.740277, 0.95258
sgpcmbeC1.c1,2000,0614:30:00,20 ,1.751559, 5.20269,3.782194,0.912195
sgpcmbeC1.c1,2000,0615:30:00,20 ,1.784147,5.105606,3.793767,0.889717
sgpcmbeC1.c1,2000,0616:30:00,19 ,1.894561,5.004584,  3.8552,0.880934
sgpcmbeC1.c1,2000,0617:30:00,19 ,1.982476,5.059214,3.871762,0.891176
sgpcmbeC1.c1,2000,0618:30:00,17 ,2.168284,5.152485,3.920171,0.811362
sgpcmbeC1.c1,2000,0619:30:00,17 ,2.148613,5.413162,3.871958,0.803121
sgpcmbeC1.c1,2000,0620:30:00,17 ,2.187805,5.311771,3.886131,0.793539
sgpcmbeC1.c1,2000,0621:30:00,17 ,2.183611,4.964324,3.888402,0.783124
sgpcmbeC1.c1,2000,0622:30:00,17 ,2.300903,4.888718,3.897278,0.736486
sgpcmbeC1.c1,2000,0623:30:00,17 ,2.391845,4.996963,3.955091, 0.71877