metric.py 文件源码

def deletion_rate(Nref, Ndeletions, eps=numpy.spacing(1)):
    """Deletion rate

    Parameters
    ----------
    Nref : int >=0
        Number of entries in the reference

    Ndeletions : int >=0
        Number of deletions

    eps : float
        eps
        (Default value=numpy.spacing(1))

    Returns
    -------
    deletion_rate: float
        Deletion rate

    """

    return float(Ndeletions / (Nref + eps))