datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2004,07 0:30:00,28 , 1.54476,5.494907,3.688452,0.905161
sgpcmbeC1.c1,2004,07 1:30:00,28 ,1.561067,5.311688,3.644739,0.881272
sgpcmbeC1.c1,2004,07 2:30:00,28 ,1.563143,5.409666,3.690386,0.905165
sgpcmbeC1.c1,2004,07 3:30:00,28 ,1.613351,5.339876,3.665427,0.898807
sgpcmbeC1.c1,2004,07 4:30:00,27 ,1.737661,5.261367,3.663929,0.882593
sgpcmbeC1.c1,2004,07 5:30:00,27 ,1.882215,5.243488,3.651183,0.836435
sgpcmbeC1.c1,2004,07 6:30:00,28 ,1.892915, 5.21938,3.678705, 0.83118
sgpcmbeC1.c1,2004,07 7:30:00,29 ,1.841028,5.265606,3.685216,0.846583
sgpcmbeC1.c1,2004,07 8:30:00,27 ,1.825789,5.140853,3.588774,0.810801
sgpcmbeC1.c1,2004,07 9:30:00,28 ,1.811458,5.231168,3.671105,0.840262
sgpcmbeC1.c1,2004,0710:30:00,28 ,1.734365,5.013805,3.647626,0.802553
sgpcmbeC1.c1,2004,0711:30:00,28 ,1.702703, 4.86331,3.616848,0.753737
sgpcmbeC1.c1,2004,0712:30:00,28 ,1.661763,4.842486,3.609341,0.720912
sgpcmbeC1.c1,2004,0713:30:00,28 ,1.713923,5.125798,3.644572,0.730767
sgpcmbeC1.c1,2004,0714:30:00,28 , 1.75531,5.123444,3.671232, 0.73918
sgpcmbeC1.c1,2004,0715:30:00,28 ,1.823163,5.260136,3.670342,0.735985
sgpcmbeC1.c1,2004,0716:30:00,27 , 1.75931,4.835271,3.687806,0.672837
sgpcmbeC1.c1,2004,0717:30:00,28 ,1.683628,5.411595,3.779387,0.752017
sgpcmbeC1.c1,2004,0718:30:00,27 ,1.664326,5.375775,3.679466, 0.71251
sgpcmbeC1.c1,2004,0719:30:00,28 ,1.611633,5.497707, 3.68731,0.770822
sgpcmbeC1.c1,2004,0720:30:00,28 ,1.572341,5.535505,3.695145,0.780427
sgpcmbeC1.c1,2004,0721:30:00,28 ,1.604666,5.531139,3.685195,0.790519
sgpcmbeC1.c1,2004,0722:30:00,28 ,1.613456,5.462351,3.653777,  0.8079
sgpcmbeC1.c1,2004,0723:30:00,28 ,1.570332,5.462722,3.634756,0.848861