Python 模块中的类内相关性？

我正在寻找计算组内相关性 (ICC) https://en.wikipedia.org/wiki/Intraclass_correlation在Python中。我还没有找到具有此功能的现有模块。有替代名称吗，还是我应该自己起一个？我知道有人问了这个问题一年前 https://stats.stackexchange.com/questions/177091/inter-intra-class-correlation-coefficient-or-intra-inter-concordance-coeff经另一位用户交叉验证，但没有回复。我希望比较两个评分者之间的连续分数。

该方法有多种实现方式ICC https://www.rdocumentation.org/packages/ICC/versions/2.3.0 in R https://www.r-project.org/。这些可以通过 Python 使用rpy2 https://rpy2.bitbucket.io/包裹。例子：

from rpy2.robjects import DataFrame, FloatVector, IntVector
from rpy2.robjects.packages import importr
from math import isclose

groups = [1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4,
          4, 5, 5, 5, 5, 6, 6, 6, 6, 7, 7, 7, 7, 8, 8, 8, 8]
values = [1, 2, 0, 1, 1, 3, 3, 2, 3, 8, 1, 4, 6, 4, 3,
          3, 6, 5, 5, 6, 7, 5, 6, 2, 8, 7, 7, 9, 9, 9, 9, 8]

r_icc = importr("ICC")
df = DataFrame({"groups": IntVector(groups),
                "values": FloatVector(values)})
icc_res = r_icc.ICCbare("groups", "values", data=df)
icc_val = icc_res[0] # icc_val now holds the icc value

# check whether icc value equals reference value
print(isclose(icc_val, 0.728, abs_tol=0.001))