datastream, year, month, tod,n, min, max, mean, std
twpcmbeC1.c1,2004,07 0:30:00,31 ,       0,0.445442,0.033763,0.100265
twpcmbeC1.c1,2004,07 1:30:00,30 ,       0, 0.39419,0.058038,0.113826
twpcmbeC1.c1,2004,07 2:30:00,31 ,       0,0.369588,0.038338,0.094916
twpcmbeC1.c1,2004,07 3:30:00,31 ,       0,0.321194,0.016012,0.064783
twpcmbeC1.c1,2004,07 4:30:00,31 ,       0,0.077445,0.002498, 0.01391
twpcmbeC1.c1,2004,07 5:30:00,31 ,       0,       0,       0,       0
twpcmbeC1.c1,2004,07 6:30:00,31 ,0.166887,39.20531,16.07668,9.571417
twpcmbeC1.c1,2004,07 7:30:00,31 ,3.349883,124.7606,51.59103,32.45601
twpcmbeC1.c1,2004,07 8:30:00,31 ,6.616079,187.2967,81.59819,54.87946
twpcmbeC1.c1,2004,07 9:30:00,31 , 8.43834,245.5484,103.6857,66.19944
twpcmbeC1.c1,2004,0710:30:00,31 ,10.70054,272.2056,111.3586,77.00175
twpcmbeC1.c1,2004,0711:30:00,31 , 12.2186,305.8111,119.4061,89.38661
twpcmbeC1.c1,2004,0712:30:00,31 ,3.593242,323.9504,130.6241,91.99819
twpcmbeC1.c1,2004,0713:30:00,31 ,11.96233,327.1169,124.1507,  78.986
twpcmbeC1.c1,2004,0714:30:00,31 ,7.696593,307.0389,114.9342,76.27182
twpcmbeC1.c1,2004,0715:30:00,31 ,8.806125,250.2815,100.4234,67.80746
twpcmbeC1.c1,2004,0716:30:00,31 ,0.847238,146.8277,62.47132,41.86551
twpcmbeC1.c1,2004,0717:30:00,31 ,1.037866,86.93179,34.03601,22.16198
twpcmbeC1.c1,2004,0718:30:00,31 ,       0,7.942386,3.681835,1.952511
twpcmbeC1.c1,2004,0719:30:00,31 ,       0,       0,       0,       0
twpcmbeC1.c1,2004,0720:30:00,31 ,       0,0.227572,0.007341,0.040873
twpcmbeC1.c1,2004,0721:30:00,31 ,       0,0.160134,0.005166,0.028761
twpcmbeC1.c1,2004,0722:30:00,31 ,       0,0.374479, 0.01208,0.067258
twpcmbeC1.c1,2004,0723:30:00,31 ,       0,0.256592,0.025324, 0.06555