datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2003,01 0:30:00,28 ,0.336379, 1.68363,0.978118,0.287282
sgpcmbeC1.c1,2003,01 1:30:00,28 ,0.330858,1.675234,0.977531,0.280675
sgpcmbeC1.c1,2003,01 2:30:00,27 ,0.378209,1.627381,0.952075,0.280324
sgpcmbeC1.c1,2003,01 3:30:00,27 ,0.388985,1.603535,0.956059,0.281689
sgpcmbeC1.c1,2003,01 4:30:00,27 ,0.396638,1.473248,0.941608,0.276955
sgpcmbeC1.c1,2003,01 5:30:00,27 ,0.406204,1.454304, 0.95175,0.272143
sgpcmbeC1.c1,2003,01 6:30:00,27 ,0.433758,1.419005,0.975069, 0.27011
sgpcmbeC1.c1,2003,01 7:30:00,27 , 0.44263,1.579769,0.985289,0.285268
sgpcmbeC1.c1,2003,01 8:30:00,27 ,0.446799,1.700634,0.996751,0.296507
sgpcmbeC1.c1,2003,01 9:30:00,27 ,0.439219,1.440001,0.981387,0.272517
sgpcmbeC1.c1,2003,0110:30:00,27 ,0.430909,1.538255,0.981155,0.276762
sgpcmbeC1.c1,2003,0111:30:00,27 ,0.413088,1.524239,0.979609,0.281854
sgpcmbeC1.c1,2003,0112:30:00,27 ,0.376099,1.621323,0.980573,0.289264
sgpcmbeC1.c1,2003,0113:30:00,27 ,0.389315,1.648879,0.986633,0.291555
sgpcmbeC1.c1,2003,0114:30:00,27 ,0.405236,1.641278,0.999733,0.290925
sgpcmbeC1.c1,2003,0115:30:00,27 ,0.413675,1.604975, 1.00394,0.274481
sgpcmbeC1.c1,2003,0116:30:00,27 ,0.455127,1.690119, 1.01328,0.272746
sgpcmbeC1.c1,2003,0117:30:00,27 ,0.539456,1.714081,1.030131,  0.2702
sgpcmbeC1.c1,2003,0118:30:00,28 ,0.530384,1.605985,1.028948,0.284192
sgpcmbeC1.c1,2003,0119:30:00,28 , 0.51104,1.672759,1.027272,0.291677
sgpcmbeC1.c1,2003,0120:30:00,28 ,0.500808,2.340876,1.047547,0.360858
sgpcmbeC1.c1,2003,0121:30:00,28 ,0.468612,2.713564,1.043223,0.417198
sgpcmbeC1.c1,2003,0122:30:00,28 ,0.432034,2.496164,1.032439,0.387906
sgpcmbeC1.c1,2003,0123:30:00,28 ,0.391585,2.420277,1.027133,0.388749