datastream, year, month, tod,n, min, max, mean, std
twpcmbeC1.c1,2006,03 0:30:00,29 ,       0,0.005095,0.000176,0.000946
twpcmbeC1.c1,2006,03 1:30:00,31 ,       0,0.016755,0.000565,0.003008
twpcmbeC1.c1,2006,03 2:30:00,31 ,       0,       0,       0,       0
twpcmbeC1.c1,2006,03 3:30:00,31 ,       0,       0,       0,       0
twpcmbeC1.c1,2006,03 4:30:00,31 ,       0,       0,       0,       0
twpcmbeC1.c1,2006,03 5:30:00,31 ,       0,       0,       0,       0
twpcmbeC1.c1,2006,03 6:30:00,31 ,0.691017,34.45108,17.51946, 7.17865
twpcmbeC1.c1,2006,03 7:30:00,31 ,3.024397,69.47622,26.91172,17.53232
twpcmbeC1.c1,2006,03 8:30:00,31 ,1.290356,84.33896, 34.4442,21.03321
twpcmbeC1.c1,2006,03 9:30:00,31 ,2.107433, 105.014,43.66151,27.43842
twpcmbeC1.c1,2006,0310:30:00,31 ,13.87689,147.8456,54.27468,36.49998
twpcmbeC1.c1,2006,0311:30:00,31 ,10.21956,167.8138,53.99179,34.35703
twpcmbeC1.c1,2006,0312:30:00,31 ,1.812132,173.5634,60.71755,45.68796
twpcmbeC1.c1,2006,0313:30:00,31 ,  10.043,156.1479,54.41363,35.22928
twpcmbeC1.c1,2006,0314:30:00,31 ,2.874051,119.6486,51.39548,35.72703
twpcmbeC1.c1,2006,0315:30:00,31 ,6.734819,117.4868,46.80408,31.50286
twpcmbeC1.c1,2006,0316:30:00,31 ,0.363383,  60.597,30.97843,18.20054
twpcmbeC1.c1,2006,0317:30:00,31 ,1.330373,55.16615,26.17989,13.78478
twpcmbeC1.c1,2006,0318:30:00,31 ,0.770852,13.53378,7.168943,3.392333
twpcmbeC1.c1,2006,0319:30:00,31 ,       0,       0,       0,       0
twpcmbeC1.c1,2006,0320:30:00,31 ,       0,       0,       0,       0
twpcmbeC1.c1,2006,0321:30:00,31 ,       0,       0,       0,       0
twpcmbeC1.c1,2006,0322:30:00,31 ,       0,       0,       0,       0
twpcmbeC1.c1,2006,0323:30:00,29 ,       0,       0,       0,       0