Struct smartnoise_runtime::proto::Impute

pub struct Impute {}

Impute Component

Replaces null values with draws from a specified distribution.

If the categories argument is provided, the data are considered to be categorical regardless of atomic type and the elements provided in null_value will be replaced with those in categories according to weights.

If the categories argument is not provided, the data are considered to be numeric and elements that are f64::NAN will be replaced according to the specified distribution.

This struct represents an abstract computation. Arguments are provided via the graph. Additional options are set via the fields on this struct. The return is the result of the impute on the arguments.

Arguments

• data - Array - The data for which null values will be imputed.
• lower - Array - A lower bound on data elements for each column. Used only if categories is None.
• upper - Array - An upper bound on data elements for each column. Used only if categories is None.
• categories - Jagged - The set of categories you want to be represented for each column of the data, if the data is categorical. Atomic type must match atomic type of data.
• null_values - Jagged - The set of values that are considered null for each column of the data, if the data is categorical. Atomic type must match atomic type of data.
• weights - Jagged - Optional. The weight of each category when imputing. Uniform weights are used if not specified.
• distribution - String - The distribution to be used when imputing records. Used only if categories is None.
• shift - Array - The expectation of the Gaussian distribution to be used for imputation. Used only if distribution is Gaussian.
• scale - Array - The standard deviation of the Gaussian distribution to be used for imputation. Used only if distribution is Gaussian.

Returns

• Value - Array - Data with null values replaced by imputed values.

Trait Implementations

impl Clone for Impute

pub fn clone(&self) -> Impute

Returns a copy of the value.

pub fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Component for Impute

pub fn propagate_property(
    &self,
    _privacy_definition: &Option<PrivacyDefinition>,
    public_arguments: IndexMap<IndexKey, &Value, RandomState>,
    properties: IndexMap<IndexKey, ValueProperties, RandomState>,
    _node_id: u32
) -> Result<Warnable<ValueProperties>, Error>

Given properties known about private arguments, and public arguments, derive properties about the resulting data.

impl Debug for Impute

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl Default for Impute

pub fn default() -> Impute

Returns the “default value” for a type.

impl Evaluable for Impute

fn evaluate(
    &self,
    privacy_definition: &Option<PrivacyDefinition>,
    arguments: NodeArguments
) -> Result<ReleaseNode>

The concrete implementation of the abstract computation that the struct represents.

impl Expandable for Impute

pub fn expand_component(
    &self,
    _privacy_definition: &Option<PrivacyDefinition>,
    component: &Component,
    _public_arguments: &IndexMap<IndexKey, &Value, RandomState>,
    properties: &IndexMap<IndexKey, ValueProperties, RandomState>,
    component_id: u32,
    maximum_id: u32
) -> Result<ComponentExpansion, Error>

Concrete implementation for an Expandable component that returns a patch that may be applied to a computation graph.

impl Message for Impute

pub fn encode_raw<B>(&self, buf: &mut B) where
    B: BufMut, 

pub fn merge_field<B>(
    &mut self,
    tag: u32,
    wire_type: WireType,
    buf: &mut B,
    ctx: DecodeContext
) -> Result<(), DecodeError> where
    B: Buf, 

pub fn encoded_len(&self) -> usize

Returns the encoded length of the message without a length delimiter.

pub fn clear(&mut self)

Clears the message, resetting all fields to their default.

pub fn encode<B>(&self, buf: &mut B) -> Result<(), EncodeError> where
    B: BufMut, 

Encodes the message to a buffer.

pub fn encode_length_delimited<B>(&self, buf: &mut B) -> Result<(), EncodeError> where
    B: BufMut, 

Encodes the message with a length-delimiter to a buffer.

pub fn decode<B>(buf: B) -> Result<Self, DecodeError> where
    Self: Default,
    B: Buf, 

Decodes an instance of the message from a buffer.

pub fn decode_length_delimited<B>(buf: B) -> Result<Self, DecodeError> where
    Self: Default,
    B: Buf, 

Decodes a length-delimited instance of the message from the buffer.

pub fn merge<B>(&mut self, buf: B) -> Result<(), DecodeError> where
    B: Buf, 

Decodes an instance of the message from a buffer, and merges it into self.

pub fn merge_length_delimited<B>(&mut self, buf: B) -> Result<(), DecodeError> where
    B: Buf, 

Decodes a length-delimited instance of the message from buffer, and merges it into self.

impl PartialEq<Impute> for Impute

pub fn eq(&self, other: &Impute) -> bool

This method tests for self and other values to be equal, and is used by ==.

#[must_use]pub fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

impl StructuralPartialEq for Impute