def num_windows_of_length_M_on_buffers_of_length_N(M, N):
    return N - M + 1
.. todo::
dataset/ETHPy150Open quantopian/zipline/tests/pipeline/test_adjusted_array.py/num_windows_of_length_M_on_buffers_of_length_N--crossover with--dataset/ETHPy150Open lisa-lab/pylearn2/pylearn2/datasets/preprocessing.py/RemoveMean.as_block