datastream, year, month, tod,n, min, max, mean, std
twpcmbeC2.c1,2001,04 0:30:00,30 ,       0,0.392043,0.215574,0.125327
twpcmbeC2.c1,2001,04 1:30:00,30 ,       0,0.362725,0.192732,0.118048
twpcmbeC2.c1,2001,04 2:30:00,30 ,       0,0.361053,   0.164,0.123625
twpcmbeC2.c1,2001,04 3:30:00,30 ,       0,0.322575,0.176971,0.117529
twpcmbeC2.c1,2001,04 4:30:00,30 ,       0,0.293151,0.116108,0.109624
twpcmbeC2.c1,2001,04 5:30:00,30 ,       0,0.338401,0.015734,0.065639
twpcmbeC2.c1,2001,04 6:30:00,30 ,1.303004,6.050932,3.393125,1.082401
twpcmbeC2.c1,2001,04 7:30:00,30 ,26.68634,84.24663,58.18255,15.81368
twpcmbeC2.c1,2001,04 8:30:00,30 ,36.31386,155.1124,   89.55,25.94957
twpcmbeC2.c1,2001,04 9:30:00,30 ,63.02101,212.6721,120.7202,40.26703
twpcmbeC2.c1,2001,0410:30:00,30 ,52.13411,276.4261,144.6502,57.20107
twpcmbeC2.c1,2001,0411:30:00,30 ,52.61843,267.7997, 160.168,60.18529
twpcmbeC2.c1,2001,0412:30:00,30 ,4.060604,299.2813,154.7017,82.73018
twpcmbeC2.c1,2001,0413:30:00,30 ,70.21133,472.5904,199.1604,104.9606
twpcmbeC2.c1,2001,0414:30:00,30 ,64.35543,344.6067,182.4578,77.53399
twpcmbeC2.c1,2001,0415:30:00,30 ,24.63492,290.8654, 147.937,65.27825
twpcmbeC2.c1,2001,0416:30:00,30 , 31.2394, 194.526,132.1003,38.26137
twpcmbeC2.c1,2001,0417:30:00,30 ,11.36694,133.3566, 85.7524,29.31853
twpcmbeC2.c1,2001,0418:30:00,30 ,17.55805,69.86065,43.73458,14.76107
twpcmbeC2.c1,2001,0419:30:00,30 ,       0, 0.57866,0.216641,0.188799
twpcmbeC2.c1,2001,0420:30:00,30 ,       0, 0.26736,0.059567,0.079453
twpcmbeC2.c1,2001,0421:30:00,30 ,       0, 0.44671,0.230844,0.095447
twpcmbeC2.c1,2001,0422:30:00,30 ,       0,0.378589,0.183334,0.108002
twpcmbeC2.c1,2001,0423:30:00,30 ,       0,0.474266, 0.21227,0.127267