datastream, year, month, tod,n, min, max, mean, std
twpcmbeC1.c1,2006,12 0:30:00,31 ,       0,0.039511,0.001275,0.007096
twpcmbeC1.c1,2006,12 1:30:00,31 ,       0,       0,       0,       0
twpcmbeC1.c1,2006,12 2:30:00,31 ,       0,       0,       0,       0
twpcmbeC1.c1,2006,12 3:30:00,31 ,       0,       0,       0,       0
twpcmbeC1.c1,2006,12 4:30:00,31 ,       0,0.058731,0.001895,0.010548
twpcmbeC1.c1,2006,12 5:30:00,31 ,       0,2.054569,0.600285,0.500994
twpcmbeC1.c1,2006,12 6:30:00,31 ,8.655718,45.10576,23.57085,8.464143
twpcmbeC1.c1,2006,12 7:30:00,31 ,5.371351,64.52422,27.33281,18.40037
twpcmbeC1.c1,2006,12 8:30:00,31 ,3.874748,82.42999,32.58081,23.41422
twpcmbeC1.c1,2006,12 9:30:00,31 ,1.157192,101.2169,45.16256,26.09651
twpcmbeC1.c1,2006,1210:30:00,31 ,6.318346,112.2309, 47.5845,28.87555
twpcmbeC1.c1,2006,1211:30:00,31 ,7.522741,117.1899,58.07357,31.54321
twpcmbeC1.c1,2006,1212:30:00,31 ,3.657126,145.4099,61.83252,37.20982
twpcmbeC1.c1,2006,1213:30:00,31 ,21.97632,173.4242,61.02954,33.83048
twpcmbeC1.c1,2006,1214:30:00,31 ,9.790884,123.6498,55.57606,31.59824
twpcmbeC1.c1,2006,1215:30:00,31 ,8.807661,135.2624,44.32477,25.95654
twpcmbeC1.c1,2006,1216:30:00,31 ,4.199454,170.7555,35.61952,29.28633
twpcmbeC1.c1,2006,1217:30:00,31 ,4.472409,61.64318,23.14516,12.62124
twpcmbeC1.c1,2006,1218:30:00,31 ,1.039599,13.17309,5.229808,3.029935
twpcmbeC1.c1,2006,1219:30:00,31 ,       0,0.018467,0.000596,0.003317
twpcmbeC1.c1,2006,1220:30:00,31 ,       0,       0,       0,       0
twpcmbeC1.c1,2006,1221:30:00,31 ,       0,       0,       0,       0
twpcmbeC1.c1,2006,1222:30:00,31 ,       0,       0,       0,       0
twpcmbeC1.c1,2006,1223:30:00,31 ,       0,0.154221,0.005346,0.027707