# -*- coding: UTF-8 -*-
"""
@Project -> File   ：IoD_data_analysis_tool -> normalizer
@IDE    ：PyCharm
@Author ：rengengchen
@Date   ：2022/4/26 10:40
@Desc   ：
"""
import pandas as pd
from scipy.stats import zscore as scipy_zscore


def zscore(a, axis=0, ddof=0, nan_policy='propagate'):
    """
    Zi = (Xi - μ) / σ
    """
    return scipy_zscore(a, axis, ddof, nan_policy)