# uproot.dask_write

Defined in [uproot.writing._dask_write](https://github.com/scikit-hep/uproot5/blob/d216ae6a2ea5436d9b53a615b9c023860a545c11/src/uproot/writing/_dask_write.py) on [line 45](https://github.com/scikit-hep/uproot5/blob/d216ae6a2ea5436d9b53a615b9c023860a545c11/src/uproot/writing/_dask_write.py#L45).

### uproot.writing._dask_write.dask_write(array, destination, compute=True, storage_options=None, prefix: str | None = None, tree_name='tree', title='', field_name=<function <lambda>>, initial_basket_capacity=10, counter_name=<function <lambda>>, resize_factor=10.0, compression='zlib', compression_level=1)

* **Parameters:**
  * **array** (dask_awkward.Array) – The `dask_awkward.Array` collection to write to disk.
  * **destination** (*path-like*) – Where to store the output; this can be a local filesystem path
    or a remote filesystem path.
  * **compute** (*bool*) – If `True`, immediately compute the result (write data to disk). If `False` a Scalar collection will be returned such that `compute` can be explicitly called.
  * **prefix** (*str*) – An addition prefix for output files. If `None` all parts
    inside the destination directory will be named `?`; if
    defined, the names will be `f"{prefix}-partN.root"`.
  * **tree_name** (*str*) – Name of ttree to be written to. Default is “tree”.
  * **title** (*str*) – Title of ttree to be written to. Default is “”.
  * **field_name** (*callable* *of* *str → str*) – Function to generate TBranch
    names for columns of an Awkward record array or a Pandas DataFrame.
  * **initial_basket_capacity** (*int*) – Number of TBaskets that can be written to the
    TTree without rewriting the TTree metadata to make room.
  * **resize_factor** (*float*) – When the TTree metadata needs to be rewritten,
    this specifies how many more TBasket slots to allocate as a multiplicative
    factor.
  * **compression** ([uproot.compression.Compression](uproot.compression.Compression.html.md) or None) – Compression algorithm
    and level for new objects added to the file. Can be updated after creating
    the [uproot.WritableFile](uproot.writing.writable.WritableFile.html.md). Default is `uproot.ZLIB(1)`.

Writes a dask-awkward array to a set of ROOT files. Data is written to a TTree