Create new fragment with row-group subset.

`from_collections` optimized for a single collection

Given an iterable of annotations dictionaries, fuse them according to some simple rules.

Must return a method used by binary operator

Get the appropriate IPython display class for `format`. Returns `IPython.display.SVG` if format=='svg', otherwise `IPython.display.Image

Helper to get divisions for map_partitions and map_overlap output.

Get the "keys" or group identifiers which match the given key, which can contain wildcards (see _expand_path). This uses the hdf file ide

Return known partition lengths using parquet statistics

Get pandas-specific metadata from schema.

Custom version of pyarrow's RowGroupInfo.statistics method (https://github.com/apache/arrow/blob/master/python/pyarrow/_dataset.pyx) We use c

Must return a method used by unary operator

Get the appropriate chunk shape for writing to a Zarr array. For Zarr v3 arrays with sharding, returns the shard shape. For arrays without sh

A simpler version of _groupby_aggregate that just calls ``aggregate`` using the user-provided spec.

Return rows of ``next_`` whose index is before the last observation in ``current`` + ``after``. Parameters ---------- current : DataF

Simple utility to check if all `index` columns are included in the known `schema`.

Check if ``df`` and ``by`` have aligned indices

Test whether a key is a column label reference To be considered a column label reference, `key` must match the name of at least one colu

Check if a value in a Dask graph looks like a getter. 1. Is it a tuple with the first element a known getter. If a getter is found, it returns

Test whether a key is an index level reference To be considered an index level reference, `key` must match the index name and must NOT m

Check if a pyarrow-based file-system is local

A helper for loading a config file from a path, and erroring appropriately if the file is malformed.

Make a Dask Bag filled with data randomly generated by the mimesis project Parameters ---------- field: dict keyword argumen

Structural matching of term S to discrimination net node N.

Convert indexer for partial string selection if data has DatetimeIndex/PeriodIndex

Convert index-indexer for partial time string slicing if obj.index is DatetimeIndex / PeriodIndex