datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2000,05 0:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,05 1:30:00,31 ,       0,1.133641,0.036569,0.203608
sgpcmbeC1.c1,2000,05 2:30:00,31 ,       0,1.688881,0.091536,0.329929
sgpcmbeC1.c1,2000,05 3:30:00,31 ,       0,0.846258,0.027299,0.151992
sgpcmbeC1.c1,2000,05 4:30:00,31 ,       0,1.306206,0.071601,0.281757
sgpcmbeC1.c1,2000,05 5:30:00,30 ,       0,14.35776,4.068678,5.087846
sgpcmbeC1.c1,2000,05 6:30:00,22 ,       0,73.72092,32.23689,22.57832
sgpcmbeC1.c1,2000,05 7:30:00,21 ,0.031629,135.5658,47.00968,33.35154
sgpcmbeC1.c1,2000,05 8:30:00,21 ,0.500442, 161.527,53.06117,34.30158
sgpcmbeC1.c1,2000,05 9:30:00,21 ,0.315035,246.1999,68.97125,65.04736
sgpcmbeC1.c1,2000,0510:30:00,21 ,       0,239.7469,69.19121,74.67558
sgpcmbeC1.c1,2000,0511:30:00,22 ,0.794878,405.1622,102.0958,119.6544
sgpcmbeC1.c1,2000,0512:30:00,22 ,1.072319,357.5419,83.27919,124.8704
sgpcmbeC1.c1,2000,0513:30:00,22 ,0.500514,  329.12,87.14098,88.88813
sgpcmbeC1.c1,2000,0514:30:00,22 ,0.634158,189.0357,72.44891,59.31233
sgpcmbeC1.c1,2000,0515:30:00,22 ,3.804346,214.5294,64.06718,59.11915
sgpcmbeC1.c1,2000,0516:30:00,22 ,0.177288,163.0743,71.19558,39.98305
sgpcmbeC1.c1,2000,0517:30:00,22 ,0.037106,86.27552,48.12834,27.24722
sgpcmbeC1.c1,2000,0518:30:00,23 ,       0,42.73701,23.83141,15.42651
sgpcmbeC1.c1,2000,0519:30:00,30 ,       0,13.75179,2.945235,3.778147
sgpcmbeC1.c1,2000,0520:30:00,30 ,       0,1.972545,0.127184,0.484315
sgpcmbeC1.c1,2000,0521:30:00,30 ,       0,1.881303,0.102629,0.400754
sgpcmbeC1.c1,2000,0522:30:00,30 ,       0,1.688562,0.106952,0.407619
sgpcmbeC1.c1,2000,0523:30:00,30 ,       0,1.171258,0.056522,0.231263