pandas.Index.astype#
- Index.astype(dtype,copy=True)[source]#
Create an Index with values cast to dtypes.
The class of a new Index is determined by dtype. When conversion isimpossible, a TypeError exception is raised.
- Parameters:
- dtypenumpy dtype or pandas type
Note that any signed integerdtype is treated as
'int64',and any unsigned integerdtype is treated as'uint64',regardless of the size.- copybool, default True
By default, astype always returns a newly allocated object.If copy is set to False and internal requirements on dtype aresatisfied, the original data is used to create a new Indexor the original Index is returned.
- Returns:
- Index
Index with values cast to specified dtype.
Examples
>>>idx=pd.Index([1,2,3])>>>idxIndex([1, 2, 3], dtype='int64')>>>idx.astype('float')Index([1.0, 2.0, 3.0], dtype='float64')
On this page