Struct MaskedArray 

pub struct MaskedArray { /* private fields */ }

A masked array of f64 values.

Each element has an associated boolean mask value:

• false → element is valid and participates in computations.
• true → element is masked (invalid) and is replaced by fill_value when the filled view is requested.

Implementations

impl MaskedArray

pub fn new( data: Vec<f64>, mask: Option<Vec<bool>>, shape: Vec<usize>, fill_value: Option<f64>, ) -> PyResult<Self>

Construct a new masked array.

Arguments

• data – flat element buffer; length must equal the product of shape.
• mask – optional flat mask; defaults to all-false (nothing masked).
• shape – logical shape; must have product equal to data.len().
• fill_value – value substituted for masked elements (default: f64::NAN).

pub fn filled(&self) -> Vec<f64>

Return the data with masked positions replaced by fill_value.

pub fn count(&self) -> usize

Return the number of unmasked (valid) elements.

pub fn mean(&self) -> Option<f64>

Return the mean of unmasked elements, or None if all elements are masked.

pub fn sum(&self) -> f64

Return the sum of unmasked elements.

pub fn shape(&self) -> Vec<usize>

Return the logical shape.

pub fn data(&self) -> Vec<f64>

Return the raw data buffer.

pub fn mask(&self) -> Vec<bool>

Return the mask buffer.

pub fn fill_value(&self) -> f64

Return the fill value used for masked positions.

pub fn mask_element(&mut self, idx: usize, masked: bool) -> PyResult<()>

Set the mask flag for a single flat element index.

pub fn apply_unmasked(&self, op: &str) -> PyResult<Vec<f64>>

Apply an element-wise unary operation to unmasked values.

Masked positions receive fill_value. Supported operations:

• "abs" – absolute value
• "sqrt" – square root
• "log" – natural logarithm

Trait Implementations

impl<'py> IntoPyObject<'py> for MaskedArray

type Target = MaskedArray

The Python output type

type Output = Bound<'py, <MaskedArray 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 MaskedArray

const NAME: &str = "MaskedArray"

Name of the class.

type Frozen = False

Whether the pyclass is frozen.

impl PyClassImpl for MaskedArray

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

Module which the class will be associated with.

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)]

const RAW_DOC: &'static CStr = /// A masked array of `f64` values. /// /// Each element has an associated boolean mask value: /// - `false` → element is valid and participates in computations. /// - `true` → element is masked (invalid) and is replaced by `fill_value` /// when the filled view is requested.

Docstring for the class provided on the struct or enum.

const DOC: &'static CStr

Fully rendered class doc, including the text_signature if a constructor is defined.

type Layout = <<MaskedArray as PyClassImpl>::BaseNativeType as PyClassBaseType>::Layout<MaskedArray>

Description of how this class is laid out in memory

type BaseType = PyAny

Base class

type ThreadChecker = NoopThreadChecker

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

fn dict_offset() -> Option<PyObjectOffset>

Used to provide the dictoffset slot (equivalent to tp_dictoffset)

fn weaklist_offset() -> Option<PyObjectOffset>

Used to provide the weaklistoffset slot (equivalent to tp_weaklistoffset

impl PyClassNewTextSignature for MaskedArray

const TEXT_SIGNATURE: &'static str = "(data, mask, shape, fill_value)"

impl PyMethods<MaskedArray> for PyClassImplCollector<MaskedArray>

fn py_methods(self) -> &'static PyClassItems

impl PyTypeInfo for MaskedArray

const NAME: &str = <Self as ::pyo3::PyClass>::NAME

👎Deprecated since 0.28.0:

prefer using ::type_object(py).name() to get the correct runtime value

Class name.

const MODULE: Option<&str> = <Self as ::pyo3::impl_::pyclass::PyClassImpl>::MODULE

👎Deprecated since 0.28.0:

prefer using ::type_object(py).module() to get the correct runtime value

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 MaskedArray

impl ExtractPyClassWithClone for MaskedArray