Struct PyLabelEncoder 

pub struct PyLabelEncoder { /* private fields */ }

Encode target labels with value between 0 and n_classes-1.

This transformer should be used to encode target values, i.e. y, and not the input X.

Attributes

classes_ : list of shape (n_classes,) Holds the label for each class.

Examples

from sklears_python import LabelEncoder le = LabelEncoder() le.fit([“paris”, “paris”, “tokyo”, “amsterdam”]) LabelEncoder() list(le.classes_) [‘amsterdam’, ‘paris’, ‘tokyo’] le.transform([“tokyo”, “tokyo”, “paris”]) [2, 2, 1] list(le.inverse_transform([2, 2, 1])) [‘tokyo’, ‘tokyo’, ‘paris’]

Trait Implementations

impl<'py> IntoPyObject<'py> for PyLabelEncoder

type Target = PyLabelEncoder

The Python output type

type Output = Bound<'py, <PyLabelEncoder as IntoPyObject<'py>>::Target>

The smart pointer type to use.

type Error = PyErr

The type returned in the event of a conversion error.

fn into_pyobject( self, py: Python<'py>, ) -> Result<<Self as IntoPyObject<'_>>::Output, <Self as IntoPyObject<'_>>::Error>

Performs the conversion.

impl PyClass for PyLabelEncoder

type Frozen = False

Whether the pyclass is frozen.

impl PyClassImpl for PyLabelEncoder

const IS_BASETYPE: bool = false

#[pyclass(subclass)]

const IS_SUBCLASS: bool = false

#[pyclass(extends=…)]

const IS_MAPPING: bool = false

#[pyclass(mapping)]

const IS_SEQUENCE: bool = false

#[pyclass(sequence)]

const IS_IMMUTABLE_TYPE: bool = false

#[pyclass(immutable_type)]

type BaseType = PyAny

Base class

type ThreadChecker = SendablePyClass<PyLabelEncoder>

This handles following two situations:

type PyClassMutability = <<PyAny as PyClassBaseType>::PyClassMutability as PyClassMutability>::MutableChild

Immutable or mutable

type Dict = PyClassDummySlot

Specify this class has #[pyclass(dict)] or not.

type WeakRef = PyClassDummySlot

Specify this class has #[pyclass(weakref)] or not.

type BaseNativeType = PyAny

The closest native ancestor. This is PyAny by default, and when you declare #[pyclass(extends=PyDict)], it’s PyDict.

fn items_iter() -> PyClassItemsIter

fn doc(py: Python<'_>) -> PyResult<&'static CStr>

Rendered class doc

fn lazy_type_object() -> &'static LazyTypeObject<Self>

fn dict_offset() -> Option<isize>

fn weaklist_offset() -> Option<isize>

impl PyClassNewTextSignature<PyLabelEncoder> for PyClassImplCollector<PyLabelEncoder>

fn new_text_signature(self) -> Option<&'static str>

impl<'a, 'py> PyFunctionArgument<'a, 'py, false> for &'a PyLabelEncoder

type Holder = Option<PyRef<'py, PyLabelEncoder>>

fn extract( obj: &'a Bound<'py, PyAny>, holder: &'a mut Self::Holder, ) -> PyResult<Self>

impl<'a, 'py> PyFunctionArgument<'a, 'py, false> for &'a mut PyLabelEncoder

type Holder = Option<PyRefMut<'py, PyLabelEncoder>>

fn extract( obj: &'a Bound<'py, PyAny>, holder: &'a mut Self::Holder, ) -> PyResult<Self>

impl PyMethods<PyLabelEncoder> for PyClassImplCollector<PyLabelEncoder>

fn py_methods(self) -> &'static PyClassItems

impl PyTypeInfo for PyLabelEncoder

const NAME: &'static str = "LabelEncoder"

Class name.

const MODULE: Option<&'static str> = ::core::option::Option::None

Module name, if any.

fn type_object_raw(py: Python<'_>) -> *mut PyTypeObject

Returns the PyTypeObject instance for this type.

fn type_object(py: Python<'_>) -> Bound<'_, PyType>

Returns the safe abstraction over the type object.

fn is_type_of(object: &Bound<'_, PyAny>) -> bool

Checks if object is an instance of this type or a subclass of this type.

fn is_exact_type_of(object: &Bound<'_, PyAny>) -> bool

Checks if object is an instance of this type.

impl DerefToPyAny for PyLabelEncoder