获取xarray滚动的最小或最大日期

import xarray as xr

# 假设有一个名为ds的xarray数据集
ds = xr.Dataset(...)

window_size = 3  # 滚动窗口的大小
rolling_data = ds.rolling(time=window_size)

min_date = rolling_data.time.min(dim="time", skipna=True)
max_date = rolling_data.time.max(dim="time", skipna=True)