polars.datatypes.Categorical

class polars.datatypes.Categorical(ordering: CategoricalOrdering | None = 'physical')

A categorical encoding of a set of strings.

Parameters:

ordering{‘lexical’, ‘physical’}

Ordering by order of appearance ('physical', default) or string value ('lexical').

__init__(ordering: CategoricalOrdering | None = 'physical')

Methods

__init__([ordering])
base_type()	Return this DataType's fundamental/root type class.
is_(other)	Check if this DataType is the same as another DataType.
is_decimal()	Check whether the data type is a decimal type.
is_float()	Check whether the data type is a floating point type.
is_integer()	Check whether the data type is an integer type.
is_nested()	Check whether the data type is a nested type.
is_not(other)	Check if this DataType is NOT the same as another DataType.
is_numeric()	Check whether the data type is a numeric type.
is_signed_integer()	Check whether the data type is a signed integer type.
is_temporal()	Check whether the data type is a temporal type.
is_unsigned_integer()	Check whether the data type is an unsigned integer type.

Attributes

ordering