Module polars_core::prelude

Everything you need to get started with Polars.

Re-exports

• pub use crate::chunked_array::arithmetic::ArithmeticChunked;
• pub use crate::chunked_array::builder::BinaryChunkedBuilder;
• pub use crate::chunked_array::builder::BooleanChunkedBuilder;
• pub use crate::chunked_array::builder::ChunkedBuilder;
• pub use crate::chunked_array::builder::ListBinaryChunkedBuilder;
• pub use crate::chunked_array::builder::ListBooleanChunkedBuilder;
• pub use crate::chunked_array::builder::ListBuilderTrait;
• pub use crate::chunked_array::builder::ListPrimitiveChunkedBuilder;
• pub use crate::chunked_array::builder::ListStringChunkedBuilder;
• pub use crate::chunked_array::builder::NewChunkedArray;
• pub use crate::chunked_array::builder::PrimitiveChunkedBuilder;
• pub use crate::chunked_array::builder::StringChunkedBuilder;
• pub use crate::chunked_array::collect::ChunkedCollectInferIterExt;
• pub use crate::chunked_array::collect::ChunkedCollectIterExt;
• pub use crate::chunked_array::iterator::PolarsIterator;
• pub use crate::chunked_array::object::PolarsObject;
  object
• pub use crate::chunked_array::ChunkedArray;
• pub use crate::frame::explode::MeltArgs;
• pub use crate::frame::DataFrame;
• pub use crate::frame::UniqueKeepStrategy;
• pub use crate::hashing::VecHash;
• pub use crate::series::arithmetic::LhsNumOps;
• pub use crate::series::arithmetic::NumOpsDispatch;
• pub use crate::series::IntoSeries;
• pub use crate::series::Series;
• pub use crate::series::SeriesTrait;
• pub use crate::utils::IntoVec;
• pub use crate::datatypes;
• pub use crate::chunked_array::ops::*;
• pub use crate::chunked_array::temporal::conversion::*;
  temporal
• pub use crate::datatypes::*;
• pub use crate::frame::group_by::*;
  algorithm_group_by
• pub use crate::schema::*;

Modules

• default_arrays
• list
• null
• revmapdtype-categorical
• slice
• string_cachedtype-categorical
• utf8

Macros

• df
• polars_bail
• polars_ensure
• polars_err
• polars_warn

Structs

• Arc
  A thread-safe reference-counting pointer. ‘Arc’ stands for ‘Atomically Reference Counted’.
• ArrowField
  Represents Arrow’s metadata of a “column”.
• ArrowSchema
  An ordered sequence of Fields with associated [Metadata].
• CatIterdtype-categorical
• CategoricalChunkeddtype-categorical
• CategoricalChunkedBuilderdtype-categorical
• ChunkId
• GlobalRevMapMergerdtype-categorical
• NullableIdxSize
• RollingOptionsFixedWindowrolling_window
• RollingQuantileParams
• RollingVarParams
• StringCacheHolderdtype-categorical
  Enable the global string cache as long as the object is alive (RAII).

Enums

• Ambiguous
• CategoricalOrderingdtype-categorical
• IndexOrderndarray
• NonExistent
• PolarsError
• QuantileInterpolOptions
• RevMappingdtype-categorical

Traits

• ArrayCollectIterExt
• CategoricalMergeOperationdtype-categorical
• ChunkAggSeries
  Aggregations that return Series of unit length. Those can be used in broadcasting operations.
• FromData
• FromDataBinary
• FromDataUtf8
• IndexToUsize
• ListFromIter
• NamedFrom
• NamedFromOwned
• NumOpsDispatchCheckedchecked_arithmetic
• PolarsArray
• QuantileAggSeries
• SlicedArray
  Utility trait to slice concrete arrow arrays whilst keeping their concrete type. E.g. don’t return Box<dyn Array>.
• VarAggSeries

Functions

• call_categorical_merge_operationdtype-categorical
• convert_inner_type
  Cast null arrays to inner type and ensure that all offsets remain correct
• indexes_to_usizes
• make_categoricals_compatibledtype-categorical
• make_list_categoricals_compatibledtype-categorical

Type Aliases

• ArrayRef
• DynArgs
• IdxArr
• IdxSize
• LargeBinaryArray
• LargeListArray
• LargeStringArray
• NullableChunkId
• PolarsResult