Expr.Cat (CategoricalOps)

Namespace: Polars.FSharp

Instance Methods

EndsWith

Check if string representations of values end with a substring.

member EndsWith(suffix: string) : Expr

Parameters

Name	Type	Description
suffix	string	-

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GetCategories

Get the categories stored in this data type.

member GetCategories : unit -> Expr

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LenBytes

Return the byte-length of the string representation of each value.

member LenBytes : unit -> Expr

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LenChars

Return the number of characters of the string representation of each value.

member LenChars : unit -> Expr

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Physical

Get the physical values of a categorical or enum data type.

member Physical : unit -> Expr

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StartsWith

Check if string representations of values start with a substring.

member StartsWith(prefix: string) : Expr

Parameters

Name	Type	Description
prefix	string	-

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To

Convert to a categorical or enum dtype. The input must be of the physical type of the categorical or enum dtype.

member To(dtype: DataTypeExpr, ?strict: bool) : Expr

Parameters

Name	Type	Description
dtype	DataTypeExpr	The target categorical or enum dtype.
strict	bool (optional)	Whether to panic when encountering an illegal category.

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