voronoi_2d_binning.py 文件源码

def _centroid(x, y, density):
    """
    Computes weighted centroid of one bin.
    Equation (4) of Cappellari & Copin (2003)

    """
    mass = np.sum(density)
    xBar = x.dot(density)/mass
    yBar = y.dot(density)/mass

    return xBar, yBar

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