datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2007,03 0:30:00,30 , 0.26583,3.607123,1.887988,0.960905
sgpcmbeC1.c1,2007,03 1:30:00,30 ,0.289764,3.634748,1.873005,0.960957
sgpcmbeC1.c1,2007,03 2:30:00,30 ,0.302009,3.530191,1.849747,0.969927
sgpcmbeC1.c1,2007,03 3:30:00,30 ,0.297653,3.586194,1.836221,0.977494
sgpcmbeC1.c1,2007,03 4:30:00,29 ,0.328692,3.561324,1.773639,0.936081
sgpcmbeC1.c1,2007,03 5:30:00,29 ,0.334185,3.843088,1.808899,0.967535
sgpcmbeC1.c1,2007,03 6:30:00,29 ,0.324069,4.186911,1.831967,0.991308
sgpcmbeC1.c1,2007,03 7:30:00,29 ,  0.3645,3.934093, 1.85359, 0.98458
sgpcmbeC1.c1,2007,03 8:30:00,29 ,0.311189, 3.65275,1.842982,0.986128
sgpcmbeC1.c1,2007,03 9:30:00,30 ,0.296878,3.715516,1.926015,1.079501
sgpcmbeC1.c1,2007,0310:30:00,30 ,0.317867,4.047929,1.935884,1.107194
sgpcmbeC1.c1,2007,0311:30:00,28 ,0.329152,3.556361,1.821315,1.045199
sgpcmbeC1.c1,2007,0312:30:00,30 ,0.375072,3.973191,1.969151,1.129763
sgpcmbeC1.c1,2007,0313:30:00,30 , 0.34724,3.636573,1.967176,1.098258
sgpcmbeC1.c1,2007,0314:30:00,29 ,0.321354,3.509094,1.931011,1.039861
sgpcmbeC1.c1,2007,0315:30:00,29 ,0.294816, 3.53103,1.973318, 1.05484
sgpcmbeC1.c1,2007,0316:30:00,30 ,0.267991,3.711879,2.044449,1.076929
sgpcmbeC1.c1,2007,0317:30:00,30 ,0.270614, 3.41227,2.018827,0.989156
sgpcmbeC1.c1,2007,0318:30:00,30 ,0.296969,3.454459,2.007852,0.960424
sgpcmbeC1.c1,2007,0319:30:00,31 ,0.311134, 3.61365,2.048941,0.997619
sgpcmbeC1.c1,2007,0320:30:00,30 ,0.322989,3.454192,1.956341,0.952691
sgpcmbeC1.c1,2007,0321:30:00,30 ,0.307544,3.885873,1.938725,0.968822
sgpcmbeC1.c1,2007,0322:30:00,29 ,0.268642,3.664217,1.878905,0.937399
sgpcmbeC1.c1,2007,0323:30:00,30 ,0.259737, 3.92428, 1.96509,1.007334