datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2007,04 0:30:00,29 ,0.614619,3.353401,1.606771,0.697921
sgpcmbeC1.c1,2007,04 1:30:00,29 ,0.632671,3.263936,1.590786,0.667425
sgpcmbeC1.c1,2007,04 2:30:00,29 ,0.600753,3.409292,1.597728,  0.6772
sgpcmbeC1.c1,2007,04 3:30:00,29 ,0.589339,3.206088,1.594895,0.645693
sgpcmbeC1.c1,2007,04 4:30:00,29 ,0.563366,3.114192, 1.59172,0.613737
sgpcmbeC1.c1,2007,04 5:30:00,29 ,0.544206,2.968355,1.609925,0.628864
sgpcmbeC1.c1,2007,04 6:30:00,28 ,0.533945,2.937819,1.591553,0.628557
sgpcmbeC1.c1,2007,04 7:30:00,29 ,0.522225,3.223713,1.642766,0.723192
sgpcmbeC1.c1,2007,04 8:30:00,29 ,0.509878, 3.46967,1.650659,0.696718
sgpcmbeC1.c1,2007,04 9:30:00,29 ,0.522983,3.559597,1.668239,0.723649
sgpcmbeC1.c1,2007,0410:30:00,29 ,0.530825,3.931665, 1.67486,0.763858
sgpcmbeC1.c1,2007,0411:30:00,29 ,0.505877,4.073067,1.689723,0.806228
sgpcmbeC1.c1,2007,0412:30:00,30 ,0.557772,4.138108, 1.77603, 0.88418
sgpcmbeC1.c1,2007,0413:30:00,30 ,0.602335,3.614557,1.784745,0.854089
sgpcmbeC1.c1,2007,0414:30:00,29 ,0.650292,3.798361,1.705406,0.764046
sgpcmbeC1.c1,2007,0415:30:00,28 , 0.64014,3.675515,1.653776,0.717551
sgpcmbeC1.c1,2007,0416:30:00,28 ,0.634804,3.536693,1.654299,0.686084
sgpcmbeC1.c1,2007,0417:30:00,28 ,0.650971,3.514313,1.634303,0.646801
sgpcmbeC1.c1,2007,0418:30:00,28 ,0.653455,4.020084,1.689811,0.775214
sgpcmbeC1.c1,2007,0419:30:00,29 ,0.660746,3.359588,1.633183, 0.68817
sgpcmbeC1.c1,2007,0420:30:00,29 ,0.626431, 3.55747,1.607967,0.712391
sgpcmbeC1.c1,2007,0421:30:00,29 , 0.61696,3.385809, 1.58667,0.683409
sgpcmbeC1.c1,2007,0422:30:00,29 ,0.578702,3.450523,1.591705,0.698782
sgpcmbeC1.c1,2007,0423:30:00,29 ,0.636187,3.616492,1.663374,0.762719