datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2002,01 0:30:00,16 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,01 1:30:00,18 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,01 2:30:00,12 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,01 3:30:00,16 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,01 4:30:00,19 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,01 5:30:00,20 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,01 6:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,01 7:30:00,29 ,       0,12.06207,4.747545,2.563169
sgpcmbeC1.c1,2002,01 8:30:00,29 ,6.539139,30.35382, 15.4767,7.710207
sgpcmbeC1.c1,2002,01 9:30:00,29 ,3.035651,46.47028,16.97639, 13.2005
sgpcmbeC1.c1,2002,0110:30:00,29 ,1.353056,70.05195,22.70607,19.72024
sgpcmbeC1.c1,2002,0111:30:00,28 ,0.390912,95.07603,25.10985,24.15196
sgpcmbeC1.c1,2002,0112:30:00,29 ,0.369489,87.92533,30.00639,27.83651
sgpcmbeC1.c1,2002,0113:30:00,29 ,0.279886,77.90276,23.60325,24.18044
sgpcmbeC1.c1,2002,0114:30:00,29 ,0.609684,63.81548,19.21589,20.03844
sgpcmbeC1.c1,2002,0115:30:00,29 ,2.046865,40.76093,13.88925,12.83926
sgpcmbeC1.c1,2002,0116:30:00,29 ,2.146793,44.00563, 14.3374,11.09877
sgpcmbeC1.c1,2002,0117:30:00,29 ,1.095104,28.75787,10.56106,5.171344
sgpcmbeC1.c1,2002,0118:30:00,29 ,       0,0.094956,0.003274,0.017633
sgpcmbeC1.c1,2002,0119:30:00,26 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,0120:30:00,20 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,0121:30:00,21 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,0122:30:00,17 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,0123:30:00,17 ,       0,       0,       0,       0