dbscan.py 文件源码

def epsilon(data, MinPts):
    '''????
    input:  data(mat):????
            MinPts(int):??????????
    output: eps(float):??
    '''
    m, n = np.shape(data)
    xMax = np.max(data, 0)
    xMin = np.min(data, 0)
    eps = ((np.prod(xMax - xMin) * MinPts * math.gamma(0.5 * n + 1)) / (m * math.sqrt(math.pi ** n))) ** (1.0 / n)
    return eps