datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1998,08 0:30:00,27 , 2.39816,5.552998,3.986761,0.852679
sgpcmbeC1.c1,1998,08 1:30:00,27 ,2.306688,5.711012,3.969607,0.842582
sgpcmbeC1.c1,1998,08 2:30:00,27 ,2.457765, 5.54812, 3.94519, 0.76743
sgpcmbeC1.c1,1998,08 3:30:00,26 ,2.677463,5.270854,3.863523,0.650137
sgpcmbeC1.c1,1998,08 4:30:00,26 ,2.787162, 5.32453,3.938551,0.652992
sgpcmbeC1.c1,1998,08 5:30:00,25 ,2.858525, 5.26606,3.924882,0.669994
sgpcmbeC1.c1,1998,08 6:30:00,25 ,2.974214,5.114881,3.897385,0.619161
sgpcmbeC1.c1,1998,08 7:30:00,25 ,2.952684,5.009129,3.869643, 0.58859
sgpcmbeC1.c1,1998,08 8:30:00,26 ,3.007763,4.954566,3.864447, 0.52732
sgpcmbeC1.c1,1998,08 9:30:00,27 ,3.011311,4.714291,3.874203,0.520042
sgpcmbeC1.c1,1998,0810:30:00,27 ,2.959967,4.694942,3.846863,0.513614
sgpcmbeC1.c1,1998,0811:30:00,27 ,2.768841,4.840977,3.865355, 0.53407
sgpcmbeC1.c1,1998,0812:30:00,27 ,2.903044,4.941717,3.925568,0.569711
sgpcmbeC1.c1,1998,0813:30:00,26 ,3.029314,4.982012,3.949797,0.592196
sgpcmbeC1.c1,1998,0814:30:00,26 ,2.852931,4.856107,3.963806,0.586851
sgpcmbeC1.c1,1998,0815:30:00,26 ,2.913141,5.224645,3.994142,0.664886
sgpcmbeC1.c1,1998,0816:30:00,26 ,3.027754,5.486794,3.993945,0.687735
sgpcmbeC1.c1,1998,0817:30:00,24 ,3.097475,5.352475,3.956704,0.667633
sgpcmbeC1.c1,1998,0818:30:00,27 ,2.092907,5.694874,3.955356,0.807745
sgpcmbeC1.c1,1998,0819:30:00,27 ,2.096018,5.565962,3.934548,0.783117
sgpcmbeC1.c1,1998,0820:30:00,27 ,2.072687,5.361207,3.895354,0.795945
sgpcmbeC1.c1,1998,0821:30:00,27 ,2.186129,5.382557,3.914397,0.782446
sgpcmbeC1.c1,1998,0822:30:00,27 ,2.204633,5.418007,3.938527,0.778341
sgpcmbeC1.c1,1998,0823:30:00,27 ,2.311563,5.302047,  3.9357, 0.80413