使用 xarray 添加全局属性 [英] Adding global attribute using xarray

问题描述

有没有办法使用 xarray 将全局属性添加到 netCDF 文件?当我执行诸如 hndl_nc['global_attribute'] = 25 之类的操作时，它只会添加一个新变量.

Is there some way to add a global attribute to a netCDF file using xarray? When I do something like hndl_nc['global_attribute'] = 25, it just adds a new variable.

推荐答案

在 Xarray 中，直接索引一个 Dataset 就像 hndl_nc['variable_name'] 拉出一个 >DataArray 对象.要获取或设置属性，索引 .attrs 就像 hndl_nc.attrs['global_attribute'] 或 hndl_nc.attrs['global_attribute'] = 25.

In Xarray, directly indexing a Dataset like hndl_nc['variable_name'] pulls out a DataArray object. To get or set attributes, index .attrs like hndl_nc.attrs['global_attribute'] or hndl_nc.attrs['global_attribute'] = 25.

您可以使用 Python 的属性语法(如 hndl_nc.variable_or_attribute_name)访问变量和属性，但这是一项便利功能，仅当变量或属性名称与预先存在的方法或属性不冲突时才有效, 不能用于设置.

You can access both variables and attributes using Python's attribute syntax like hndl_nc.variable_or_attribute_name, but this is a convenience feature that only works when the variable or attribute name does not conflict with a preexisting method or property, and cannot be used for setting.

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