如何使用 UliEngineering 在 Python 中从 NumPy datetime64 数组提取年份
你可以使用 UliEngineering Python 库轻松从 NumPy datetime64 数组中提取年份分量：
extract_years.py
import numpy as np
from UliEngineering.Utils.Date import *
# 创建 datetime64 数组
dates = np.array(['2024-01-15', '2023-06-20', '2025-12-31'], dtype='datetime64[D]')
# 提取年份
years = extract_years(dates)
print(f"Dates: {dates}")
print(f"Years: {years}")示例输出
extract_years_output.txt
Dates: ['2024-01-15' '2023-06-20' '2025-12-31']
Years: [2024 2023 2025]extract_years() 函数返回一个 NumPy 数组，包含输入数组中每个 datetime64 值对应的年份。
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