datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2000,07 0:30:00,26 ,2.203483,5.232918,3.842284,0.830682
sgpcmbeC1.c1,2000,07 1:30:00,26 ,2.154303,5.194956,3.855091,0.818271
sgpcmbeC1.c1,2000,07 2:30:00,25 ,2.106141,5.300679,3.833861,0.834477
sgpcmbeC1.c1,2000,07 3:30:00,25 ,2.228653,5.423916, 3.79009,0.822078
sgpcmbeC1.c1,2000,07 4:30:00,27 ,2.391317,5.420288,3.797688,0.824488
sgpcmbeC1.c1,2000,07 5:30:00,26 ,2.493461,5.381505,  3.7073, 0.86069
sgpcmbeC1.c1,2000,07 6:30:00,24 ,2.241488,5.249225,3.584496,0.841554
sgpcmbeC1.c1,2000,07 7:30:00,25 ,2.074728,5.390552,3.643554,0.898935
sgpcmbeC1.c1,2000,07 8:30:00,28 ,2.238923,5.225221, 3.67728,0.793395
sgpcmbeC1.c1,2000,07 9:30:00,28 ,2.309196,5.115863,3.607755,0.756038
sgpcmbeC1.c1,2000,0710:30:00,28 ,2.290569,5.119312,3.622368,0.742065
sgpcmbeC1.c1,2000,0711:30:00,27 ,2.305576,5.043151,3.588677,0.729658
sgpcmbeC1.c1,2000,0712:30:00,27 ,2.348943,4.955675,3.618656,0.744501
sgpcmbeC1.c1,2000,0713:30:00,27 ,2.416373,5.224751,3.642676,0.731527
sgpcmbeC1.c1,2000,0714:30:00,27 ,2.349565,5.324293,3.653088,0.740172
sgpcmbeC1.c1,2000,0715:30:00,27 ,2.283268,5.423047, 3.70907,0.779403
sgpcmbeC1.c1,2000,0716:30:00,27 ,2.290631,5.344008,3.748256,0.774768
sgpcmbeC1.c1,2000,0717:30:00,27 ,2.272299,5.353671,3.774153,0.800969
sgpcmbeC1.c1,2000,0718:30:00,28 ,2.595965,5.319444,3.814263,0.765459
sgpcmbeC1.c1,2000,0719:30:00,28 ,2.697618,5.274737,3.789617,0.802855
sgpcmbeC1.c1,2000,0720:30:00,28 ,2.637319,5.106274,3.768998,0.808923
sgpcmbeC1.c1,2000,0721:30:00,28 ,2.483765,5.277023,3.763303,0.847137
sgpcmbeC1.c1,2000,0722:30:00,27 , 2.34396,5.526724,3.781828,0.869067
sgpcmbeC1.c1,2000,0723:30:00,27 ,2.313085,5.425365,3.789104, 0.86757