datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2004,05 0:30:00,31 ,0.370622,5.501004,1.518461, 1.14838
sgpcmbeC1.c1,2004,05 1:30:00,31 ,0.346565,6.795371,1.331438,1.213159
sgpcmbeC1.c1,2004,05 2:30:00,31 ,0.322271,4.207439, 1.25188,0.817443
sgpcmbeC1.c1,2004,05 3:30:00,31 , 0.36849,5.889425,1.476777,1.116433
sgpcmbeC1.c1,2004,05 4:30:00,31 , 0.38238,6.958805,1.646034,1.473125
sgpcmbeC1.c1,2004,05 5:30:00,31 ,0.358639,4.055445,1.328452,0.959427
sgpcmbeC1.c1,2004,05 6:30:00,31 ,0.883295,10.47265,4.105882,2.188433
sgpcmbeC1.c1,2004,05 7:30:00,31 ,0.541937, 9.41449, 4.72181,2.421795
sgpcmbeC1.c1,2004,05 8:30:00,31 ,0.573864,12.66607,5.090555,2.682309
sgpcmbeC1.c1,2004,05 9:30:00,31 ,1.168587,13.66099,5.022103,2.195144
sgpcmbeC1.c1,2004,0510:30:00,31 ,1.750888,13.78246,5.807755,2.430264
sgpcmbeC1.c1,2004,0511:30:00,31 , 0.86122,15.55178,5.407092,3.091494
sgpcmbeC1.c1,2004,0512:30:00,31 ,1.151178, 12.7467,4.667818,2.793534
sgpcmbeC1.c1,2004,0513:30:00,31 ,1.134181,8.378326, 3.58384, 1.94031
sgpcmbeC1.c1,2004,0514:30:00,31 ,0.797718,10.67385,3.825679,2.432926
sgpcmbeC1.c1,2004,0515:30:00,31 ,0.874412, 8.61649,3.884346,1.610458
sgpcmbeC1.c1,2004,0516:30:00,31 ,0.623155,8.953194,4.171268,1.689365
sgpcmbeC1.c1,2004,0517:30:00,31 ,0.732239,8.540873,4.241177,1.558008
sgpcmbeC1.c1,2004,0518:30:00,31 ,0.316091,7.865551,  4.7354,1.842232
sgpcmbeC1.c1,2004,0519:30:00,31 ,0.247091,11.49467,4.245781,2.259556
sgpcmbeC1.c1,2004,0520:30:00,31 ,0.284601,5.666049,2.393132,1.448335
sgpcmbeC1.c1,2004,0521:30:00,31 ,0.601947,9.079218, 2.28277,2.098232
sgpcmbeC1.c1,2004,0522:30:00,31 ,0.448212,9.789026,1.870261,1.793999
sgpcmbeC1.c1,2004,0523:30:00,31 ,0.503153, 2.95463,1.402729,0.648037