def METHOD_NAME(size_n, d, which_prior):
    e = np.sqrt( (1-np.exp(-0.8))/2.88)
    if which_prior == 1 :
        return uniform(0, 1, size=(size_n, d))
    elif which_prior == 2 :
        return uniform(0, e, size=(size_n, d))
    elif which_prior == 3 :
        return uniform(e, 1, size=(size_n, d))