pyarrow.repeat#

pyarrow.repeat(value, size, MemoryPool memory_pool=None)#

Create an Array instance whose slots are the given scalar.

Parameters:

valueScalar-like object

Either a pyarrow.Scalar or any python object coercible to a Scalar.

sizeint

Number of times to repeat the scalar in the output Array.

memory_poolMemoryPool, default None

Arrow MemoryPool to use for allocations. Uses the default memory pool if not passed.

Returns:

arrArray

Examples

>>> import pyarrow as pa
>>> pa.repeat(10, 3)
<pyarrow.lib.Int64Array object at ...>
[
  10,
  10,
  10
]

>>> pa.repeat([1, 2], 2)
<pyarrow.lib.ListArray object at ...>
[
  [
    1,
    2
  ],
  [
    1,
    2
  ]
]

>>> pa.repeat("string", 3)
<pyarrow.lib.StringArray object at ...>
[
  "string",
  "string",
  "string"
]

>>> pa.repeat(pa.scalar({'a': 1, 'b': [1, 2]}), 2)
<pyarrow.lib.StructArray object at ...>
-- is_valid: all not null
-- child 0 type: int64
  [
    1,
    1
  ]
-- child 1 type: list<item: int64>
  [
    [
      1,
      2
    ],
    [
      1,
      2
    ]
  ]