datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2000,07 0:30:00,27 ,2.171276, 5.18435,3.812414,0.813315
sgpcmbeC1.c1,2000,07 1:30:00,27 ,2.122547,5.148407,3.826382,0.801174
sgpcmbeC1.c1,2000,07 2:30:00,26 ,2.073922,5.280813,3.809526,0.821669
sgpcmbeC1.c1,2000,07 3:30:00,26 ,2.195727,5.386522,3.769565,0.812323
sgpcmbeC1.c1,2000,07 4:30:00,28 ,2.355377,5.471588,3.807097,0.830983
sgpcmbeC1.c1,2000,07 5:30:00,26 ,2.455716,5.324025,3.698302,0.878323
sgpcmbeC1.c1,2000,07 6:30:00,24 ,2.207001,5.199219,3.621589,0.844563
sgpcmbeC1.c1,2000,07 7:30:00,26 ,2.041977,5.435938,3.648486,  0.9106
sgpcmbeC1.c1,2000,07 8:30:00,28 ,2.205676,5.176028, 3.64592,0.799836
sgpcmbeC1.c1,2000,07 9:30:00,29 ,2.274881,5.066081,3.594354,0.753832
sgpcmbeC1.c1,2000,0710:30:00,29 ,2.256631,5.069465, 3.59969,0.731759
sgpcmbeC1.c1,2000,0711:30:00,28 ,2.271326,4.994764, 3.56858,0.719982
sgpcmbeC1.c1,2000,0712:30:00,28 , 2.31553, 4.90891,3.597284,0.732184
sgpcmbeC1.c1,2000,0713:30:00,28 ,2.380322,5.177206,3.612365,0.715925
sgpcmbeC1.c1,2000,0714:30:00,28 ,2.315914,5.320071,3.622002, 0.72808
sgpcmbeC1.c1,2000,0715:30:00,28 ,2.250806,5.458527,3.674047,0.769384
sgpcmbeC1.c1,2000,0716:30:00,28 ,2.258047,5.297788,3.705422,0.757309
sgpcmbeC1.c1,2000,0717:30:00,28 ,2.239845,5.307835,3.733296,0.782528
sgpcmbeC1.c1,2000,0718:30:00,30 ,2.558678,5.272885,3.794908,0.752543
sgpcmbeC1.c1,2000,0719:30:00,30 ,2.660981,5.227285,3.776302,0.786569
sgpcmbeC1.c1,2000,0720:30:00,30 ,2.600229,5.057064,3.754794,0.790752
sgpcmbeC1.c1,2000,0721:30:00,30 ,2.446296,5.230299,3.746417,0.824528
sgpcmbeC1.c1,2000,0722:30:00,28 ,2.308707,5.481196,3.757684,0.853849
sgpcmbeC1.c1,2000,0723:30:00,28 ,2.278834, 5.37993, 3.76986,0.855341