datastream, year, month, tod,n, min, max, mean, std
twpcmbeC1.c1,1999,07 0:30:00,30 ,       0,0.002515,0.000225,0.000696
twpcmbeC1.c1,1999,07 1:30:00,30 ,       0,0.058572,0.002471,0.010892
twpcmbeC1.c1,1999,07 2:30:00,30 ,       0, 0.10294,0.003431,0.018794
twpcmbeC1.c1,1999,07 3:30:00,31 ,       0,0.073145, 0.00236,0.013137
twpcmbeC1.c1,1999,07 4:30:00,31 ,       0,       0,       0,       0
twpcmbeC1.c1,1999,07 5:30:00,31 ,       0,0.278649,0.008989,0.050047
twpcmbeC1.c1,1999,07 6:30:00,31 ,0.162424,46.45148,19.20172,9.820583
twpcmbeC1.c1,1999,07 7:30:00,31 ,4.404306,164.7108,90.70955,33.64106
twpcmbeC1.c1,1999,07 8:30:00,31 , 34.2921,298.1767,152.4777,66.87589
twpcmbeC1.c1,1999,07 9:30:00,31 ,48.53414,403.9966,218.4466,105.3637
twpcmbeC1.c1,1999,0710:30:00,31 , 72.7989, 455.654,255.7943,113.3466
twpcmbeC1.c1,1999,0711:30:00,31 ,22.94572,520.2764,278.7586, 138.829
twpcmbeC1.c1,1999,0712:30:00,31 ,19.39344,523.7232,282.5541, 139.096
twpcmbeC1.c1,1999,0713:30:00,31 ,52.65354,476.1439,258.4864,109.5198
twpcmbeC1.c1,1999,0714:30:00,31 ,58.83215,398.7595,235.4155,106.7869
twpcmbeC1.c1,1999,0715:30:00,31 ,67.52686,331.9384,197.2709,67.38433
twpcmbeC1.c1,1999,0716:30:00,31 ,30.21905,203.5286,128.7817,42.90701
twpcmbeC1.c1,1999,0717:30:00,31 ,5.292924, 92.3498,54.56877,21.17703
twpcmbeC1.c1,1999,0718:30:00,31 ,       0,7.835088,  2.2316,1.516888
twpcmbeC1.c1,1999,0719:30:00,31 ,       0,0.073666,0.002376,0.013231
twpcmbeC1.c1,1999,0720:30:00,31 ,       0,0.367749,0.012143,0.066016
twpcmbeC1.c1,1999,0721:30:00,31 ,       0,0.332386,0.011615, 0.05974
twpcmbeC1.c1,1999,0722:30:00,31 ,       0, 0.70603,0.022825,0.126798
twpcmbeC1.c1,1999,0723:30:00,31 ,       0,0.513255,0.016557,0.092183