larray.Axis.astype

Axis.astype(dtype: Union[str, dtype], casting: str = 'unsafe') → Axis[source]

Cast labels to a specified type.

Parameters
dtype: str or dtype

Typecode or data-type to which the labels are cast.

casting: str, optional

Controls what kind of data casting may occur. Defaults to unsafe.

  • no means the data types should not be cast at all.

  • equiv means only byte-order changes are allowed.

  • safe means only casts which can preserve values are allowed.

  • same_kind means only safe casts or casts within a kind, like float64 to float32, are allowed.

  • unsafe means any data conversions may be done.

Returns
Axis

Axis with labels converted to the new type.

Examples

>>> from larray import ndtest
>>> arr = ndtest('time=2015..2020')
>>> arr = arr.with_total()
>>> arr
time  2015  2016  2017  2018  2019  2020  total
         0     1     2     3     4     5     15
>>> arr = arr.drop('total')
>>> time = arr.time
>>> time
Axis([2015, 2016, 2017, 2018, 2019, 2020], 'time')
>>> time.dtype
dtype('O')
>>> time = time.astype(int)
>>> time.dtype                      
dtype('int64')