datastream, year, month, tod,n, min, max, mean, std
twpcmbeC2.c1,2005,12 0:30:00,30 ,       0, 91.5731,23.04222,26.34311
twpcmbeC2.c1,2005,12 1:30:00,30 ,       0,91.16381,22.62728,24.72858
twpcmbeC2.c1,2005,12 2:30:00,30 ,       0,101.3214,24.52315,26.56799
twpcmbeC2.c1,2005,12 3:30:00,30 ,       0,  140.51,26.28487,33.81541
twpcmbeC2.c1,2005,12 4:30:00,30 ,       0,121.5336,26.16612,27.13543
twpcmbeC2.c1,2005,12 5:30:00,30 ,       0,125.7456,22.51146,27.22692
twpcmbeC2.c1,2005,12 6:30:00,29 ,       0,99.32812,23.16598,30.35704
twpcmbeC2.c1,2005,12 7:30:00,30 ,       0,59.63714,17.31958,16.36369
twpcmbeC2.c1,2005,12 8:30:00,30 ,       0,127.8906,22.20524,31.84765
twpcmbeC2.c1,2005,12 9:30:00,30 ,       0,85.49268,21.03084,20.33396
twpcmbeC2.c1,2005,1210:30:00,30 ,       0,98.03691,23.80744,24.07257
twpcmbeC2.c1,2005,1211:30:00,30 ,       0,103.7034,28.33865,30.99296
twpcmbeC2.c1,2005,1212:30:00,29 ,       0,190.3499,30.48389,40.61582
twpcmbeC2.c1,2005,1213:30:00,29 ,0.643761,152.0707,24.08727,28.03534
twpcmbeC2.c1,2005,1214:30:00,28 ,       0,161.2239,30.58811,35.89446
twpcmbeC2.c1,2005,1215:30:00,28 ,0.001271,131.4421,29.50808,33.43154
twpcmbeC2.c1,2005,1216:30:00,29 ,       0,138.2343,29.79338,31.00184
twpcmbeC2.c1,2005,1217:30:00,29 ,       0,120.1014,23.07687, 30.4168
twpcmbeC2.c1,2005,1218:30:00,29 ,0.115079,141.0401,20.09487,29.81313
twpcmbeC2.c1,2005,1219:30:00,29 ,       0,84.56309,16.31722,20.95832
twpcmbeC2.c1,2005,1220:30:00,29 ,       0,156.7332,21.63308,30.50596
twpcmbeC2.c1,2005,1221:30:00,29 ,0.239829,93.33301,19.78205,24.23207
twpcmbeC2.c1,2005,1222:30:00,29 ,       0, 81.2551,23.13135, 23.2454
twpcmbeC2.c1,2005,1223:30:00,29 ,       0,113.0547,24.21059,  25.733