datastream, year, month, tod,n, min, max, mean, std
twpcmbeC2.c1,2002,03 0:30:00,29 ,       0,0.212949,0.022742, 0.05226
twpcmbeC2.c1,2002,03 1:30:00,29 ,       0,0.707652,0.040476,0.133577
twpcmbeC2.c1,2002,03 2:30:00,30 ,       0,0.645471,  0.0304,0.118627
twpcmbeC2.c1,2002,03 3:30:00,30 ,       0,0.571404,0.028265,0.107195
twpcmbeC2.c1,2002,03 4:30:00,31 ,       0,       0,       0,       0
twpcmbeC2.c1,2002,03 5:30:00,31 ,       0,0.032034,0.001033,0.005753
twpcmbeC2.c1,2002,03 6:30:00,31 ,       0,0.002394,0.000253,0.000496
twpcmbeC2.c1,2002,03 7:30:00,31 ,0.007435,7.131706,1.567033,2.026227
twpcmbeC2.c1,2002,03 8:30:00,31 ,       0,100.9783,23.33509,29.45803
twpcmbeC2.c1,2002,03 9:30:00,31 ,0.125343,472.3798,103.1453,122.7825
twpcmbeC2.c1,2002,0310:30:00,31 ,0.214556,662.5643,238.8613,218.1915
twpcmbeC2.c1,2002,0311:30:00,31 ,0.622656,803.5838,281.4502,266.0676
twpcmbeC2.c1,2002,0312:30:00,31 ,0.657959,882.3208,315.4863, 299.355
twpcmbeC2.c1,2002,0313:30:00,31 ,0.257446,874.6259,338.5362,293.8456
twpcmbeC2.c1,2002,0314:30:00,31 ,0.342079,846.2068,285.8734,275.0207
twpcmbeC2.c1,2002,0315:30:00,31 ,0.407349,696.6323,  186.76,224.0071
twpcmbeC2.c1,2002,0316:30:00,31 ,       0,511.7204, 119.762,154.5965
twpcmbeC2.c1,2002,0317:30:00,31 ,0.002975,290.4911,58.73948, 89.9659
twpcmbeC2.c1,2002,0318:30:00,31 ,       0,64.15365,9.463394,18.29418
twpcmbeC2.c1,2002,0319:30:00,31 ,       0,0.080335,0.004289,0.015083
twpcmbeC2.c1,2002,0320:30:00,31 ,       0,       0,       0,       0
twpcmbeC2.c1,2002,0321:30:00,31 ,       0,0.009943,0.000321,0.001786
twpcmbeC2.c1,2002,0322:30:00,30 ,       0,0.064217,0.004756,0.013876
twpcmbeC2.c1,2002,0323:30:00,29 ,       0,0.124855,0.015309,0.036735