utils.py 文件源码

def calculate_fractional_overlap(interest_range, comparison_range):
    """
    Calculate how much of the range of interest overlaps with the comparison
    range.
    """

    if not (interest_range[-1] >= comparison_range[0] \
        and comparison_range[-1] >= interest_range[0]):
        return 0.0 # No overlap

    elif   (interest_range[0] >= comparison_range[0] \
        and interest_range[-1] <= comparison_range[-1]):
        return 1.0 # Total overlap 

    else:
        # Some overlap. Which side?
        if interest_range[0] < comparison_range[0]:
            # Left hand side
            width = interest_range[-1] - comparison_range[0]

        else:
            # Right hand side
            width = comparison_range[-1] - interest_range[0]
        return width/np.ptp(interest_range) # Fractional overlap