>>> from mask_avg import mask_avg

>>> l =     [1.0, 3.0, 2.5, 6.2, 4.8, 8.1]
>>> lmasc = [0.0, 0.2, 0.4, 0.3, 0.5, 0.1]
>>> mask_avg(l, lmasc)
>>> l  # doctesttag: +TAG=1_mask_avg
[0.5, 1.6, 1.4, 3.2, 2.6, 4.1]

>>> l =     [1.0, 3.0, 2.5, 6.2, 4.8, 8.1]
>>> lmasc = [10.0, 10.2, 10.4, 10.3, 10.5, 10.1]
>>> mask_avg(l, lmasc)
>>> l  # doctesttag: +TAG=1_mask_avg
[5.5, 6.6, 6.5, 8.2, 7.7, 9.1]

>>> l =     [1.0, 3.0, 2.5, 6.2, 4.8, 8.1]
>>> lmasc = [0.0, 0.0, 0.0, 0.0, 0.0, 0.0]
>>> mask_avg(l, lmasc)
>>> l  # doctesttag: +TAG=1_mask_avg
[0.5, 1.5, 1.2, 3.1, 2.4, 4.0]

>>> l =     [1.0, 3.0, 2.5, 6.2, 4.8, 8.1]
>>> lmasc = [-1.0, -3.0, -2.5, -6.2, -4.8, -8.1]
>>> mask_avg(l, lmasc)
>>> l  # doctesttag: +TAG=1_mask_avg
[0.0, 0.0, 0.0, 0.0, 0.0, 0.0]

>>> l = [0.8, 9.8, -8.3, -2.5, -0.0, -5.1, -2.1, 2.0, -1.3, 5.1, 0.7, 9.9, -3.5, -2.7, -1.6, 1.8, 9.1, -9.1, 4.3, -8.2, -4.6, 8.2, 0.4, -7.4, 5.3, 7.0, 5.1, 3.5, -4.7, -4.4]
>>> lmasc = [2.6, -7.5, -9.4, 0.5, 0.2, 2.4, -9.1, 5.4, 6.4, -8.3, 6.8, 3.4, -4.3, -7.6, 4.6, 9.9, 8.0, 3.5, -1.5, 3.7, -8.3, 6.7, 6.5, 9.4, 5.7, -1.1, 1.0, -2.0, -1.4, -2.8]
>>> mask_avg(l, lmasc)
>>> l  # doctesttag: +TAG=1_mask_avg
[1.7, 1.2, -8.9, -1.0, 0.1, -1.3, -5.6, 3.7, 2.6, -1.6, 3.8, 6.7, -3.9, -5.2, 1.5, 5.9, 8.6, -2.8, 1.4, -2.2, -6.5, 7.4, 3.5, 1.0, 5.5, 3.0, 3.0, 0.8, -3.0, -3.6]