mars.dataframe.Index.astype#
- Index.astype(dtype, copy=True)#
Create an Index with values cast to dtypes.
The class of a new Index is determined by dtype. When conversion is impossible, a ValueError exception is raised.
- 参数
dtype (numpy dtype or pandas type) – Note that any signed integer dtype is treated as
'int64', and any unsigned integer dtype is treated as'uint64', regardless of the size.copy (bool, default True) – By default, astype always returns a newly allocated object. If copy is set to False and internal requirements on dtype are satisfied, the original data is used to create a new Index or the original Index is returned.
- 返回
Index with values cast to specified dtype.
- 返回类型