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51CTO
6 天
一文带您理解正态分数变换 (Normal Score Transformation,NST)
对于每个 xi,将秩值 Rxi 转换为正态分布的分位数,计算公式为: 图片 其中,ϕ−1 是标准正态分布的逆累积分布 ... 下面的python 代码实现: import numpy as np from scipy.stats import rankdata, norm # 假设有一组非正态分布的数据 x = [0.1, 0.2, 1.1, 1.5, 3.8, 5.4, 6.9, 6.6, ...
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