datastream, year, month, tod,n, min, max, mean, std
twpcmbeC1.c1,1998,05 0:30:00,31 ,       0,0.472267,0.057033,0.113654
twpcmbeC1.c1,1998,05 1:30:00,31 ,       0,0.307022,0.051739,0.083896
twpcmbeC1.c1,1998,05 2:30:00,31 ,       0,0.275736,0.049963,0.083209
twpcmbeC1.c1,1998,05 3:30:00,31 ,       0,0.164501,0.032441,0.056616
twpcmbeC1.c1,1998,05 4:30:00,31 ,       0,0.241442,0.042152,0.076651
twpcmbeC1.c1,1998,05 5:30:00,31 ,       0,1.266231,0.230423, 0.28905
twpcmbeC1.c1,1998,05 6:30:00,31 ,3.535354,55.80733,18.93035,9.244819
twpcmbeC1.c1,1998,05 7:30:00,31 ,2.750093, 59.4708,24.06459,16.41679
twpcmbeC1.c1,1998,05 8:30:00,31 ,2.280267,78.18685,34.34965,21.89765
twpcmbeC1.c1,1998,05 9:30:00,31 ,2.829142,109.1423, 45.4384, 30.8657
twpcmbeC1.c1,1998,0510:30:00,31 ,5.090261, 174.261,50.24558,35.64544
twpcmbeC1.c1,1998,0511:30:00,31 ,8.581168,180.5232,69.88975,42.73883
twpcmbeC1.c1,1998,0512:30:00,31 ,2.042581,183.0842,  62.619,39.18269
twpcmbeC1.c1,1998,0513:30:00,31 ,2.638587,187.8401,55.76121,44.03472
twpcmbeC1.c1,1998,0514:30:00,31 ,4.663497,127.8551,47.63187,34.23351
twpcmbeC1.c1,1998,0515:30:00,31 ,  6.2964,201.3472, 36.1159,36.97243
twpcmbeC1.c1,1998,0516:30:00,31 ,1.677208,71.40977, 27.2814,17.41256
twpcmbeC1.c1,1998,0517:30:00,31 ,1.243458,43.34237,18.87531, 9.34511
twpcmbeC1.c1,1998,0518:30:00,31 ,       0,4.599482,1.634319,1.153371
twpcmbeC1.c1,1998,0519:30:00,31 ,       0,  0.1311,0.004229,0.023546
twpcmbeC1.c1,1998,0520:30:00,31 ,       0,0.094206, 0.00592,0.022923
twpcmbeC1.c1,1998,0521:30:00,31 ,       0,0.233149,0.020545, 0.05874
twpcmbeC1.c1,1998,0522:30:00,31 ,       0,0.233151,0.025984,0.063814
twpcmbeC1.c1,1998,0523:30:00,31 ,       0,0.190289,0.034076, 0.06039