datastream, year, month, tod,n, min, max, mean, std
twpcmbeC2.c1,2002,11 0:30:00,29 ,       0,0.024017,0.001971,0.006321
twpcmbeC2.c1,2002,11 1:30:00,29 ,       0,0.048584,  0.0042,0.011687
twpcmbeC2.c1,2002,11 2:30:00,30 ,       0,0.040248,0.001342,0.007348
twpcmbeC2.c1,2002,11 3:30:00,29 ,       0, 0.01025,0.000687,0.002569
twpcmbeC2.c1,2002,11 4:30:00,30 ,       0,       0,       0,       0
twpcmbeC2.c1,2002,11 5:30:00,30 ,       0,       0,       0,       0
twpcmbeC2.c1,2002,11 6:30:00,30 ,       0, 0.04208,0.016943,0.012337
twpcmbeC2.c1,2002,11 7:30:00,30 ,       0,76.47781,34.04167,31.80569
twpcmbeC2.c1,2002,11 8:30:00,30 ,0.000092,337.7914,144.3145,122.6946
twpcmbeC2.c1,2002,11 9:30:00,30 ,       0,559.3234,257.7794,224.0672
twpcmbeC2.c1,2002,1110:30:00,30 , 0.10965,731.0977,326.9419,246.9764
twpcmbeC2.c1,2002,1111:30:00,30 ,0.317902,860.5356, 405.828,295.7077
twpcmbeC2.c1,2002,1112:30:00,30 ,0.379417,878.4714,393.5118,309.6131
twpcmbeC2.c1,2002,1113:30:00,30 , 0.10302,893.9378,406.6472,329.7665
twpcmbeC2.c1,2002,1114:30:00,30 ,0.034042,781.4401,388.9085,285.3975
twpcmbeC2.c1,2002,1115:30:00,30 ,0.081558,618.1696,285.5936,243.4116
twpcmbeC2.c1,2002,1116:30:00,30 , 0.07469,391.3626,162.8009,144.4507
twpcmbeC2.c1,2002,1117:30:00,30 ,0.000504, 179.121,64.67807,  63.212
twpcmbeC2.c1,2002,1118:30:00,30 ,0.000047, 18.4038,4.127876,5.691381
twpcmbeC2.c1,2002,1119:30:00,30 ,       0,       0,       0,       0
twpcmbeC2.c1,2002,1120:30:00,30 ,       0,       0,       0,       0
twpcmbeC2.c1,2002,1121:30:00,30 ,       0,       0,       0,       0
twpcmbeC2.c1,2002,1122:30:00,30 ,       0,0.053607,0.003546,0.012308
twpcmbeC2.c1,2002,1123:30:00,30 ,       0,       0,       0,       0