Struct light_curve_feature::features::Kurtosis

pub struct Kurtosis {}

Excess kurtosis of magnitude

$$ G_2 \equiv \frac{N,(N + 1)}{(N - 1)(N - 2)(N - 3)} \frac{\sum_i(m_i - \langle m \rangle)^4}{\sigma_m^4} - 3\frac{(N - 1)^2}{(N - 2)(N - 3)}, $$ where $N$ is the number of observations, $\langle m \rangle$ is the mean magnitude, $\sigma_m = \sqrt{\sum_i (m_i - \langle m \rangle)^2 / (N-1)}$ is the magnitude standard deviation.

• Depends on: magnitude
• Minimum number of observations: 4
• Number of features: 1

Wikipedia

Implementations

impl Kurtosis

pub fn new() -> Self

pub const fn doc() -> &'static str

Trait Implementations

impl Clone for Kurtosis

fn clone(&self) -> Kurtosis

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Kurtosis

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

Formats the value using the given formatter.

impl Default for Kurtosis

fn default() -> Kurtosis

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for Kurtosis

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl EvaluatorInfoTrait for Kurtosis

fn get_info(&self) -> &EvaluatorInfo

Get feature evaluator meta-information

fn size_hint(&self) -> usize

Size of vectors returned by eval(), get_names() and get_descriptions()

fn min_ts_length(&self) -> usize

Minimum time series length required to successfully evaluate feature

fn is_t_required(&self) -> bool

If time array used by the feature

fn is_m_required(&self) -> bool

If magnitude array is used by the feature

fn is_w_required(&self) -> bool

If weight array is used by the feature

fn is_sorting_required(&self) -> bool

If feature requires time-sorting on the input TimeSeries

impl<T> FeatureEvaluator<T> for Kurtosis

where T: Float,

fn eval(&self, ts: &mut TimeSeries<'_, T>) -> Result<Vec<T>, EvaluatorError>

Vector of feature values or EvaluatorError

fn eval_or_fill(&self, ts: &mut TimeSeries<'_, T>, fill_value: T) -> Vec<T>

Returns vector of feature values and fill invalid components with given value

fn check_ts_length( &self, ts: &TimeSeries<'_, T> ) -> Result<usize, EvaluatorError>

Checks if TimeSeries has enough points to evaluate the feature

impl FeatureNamesDescriptionsTrait for Kurtosis

fn get_names(&self) -> Vec<&str>

Vector of feature names. The length and feature order corresponds to eval() output

fn get_descriptions(&self) -> Vec<&str>

Vector of feature descriptions. The length and feature order corresponds to eval() output

impl<T> From<Kurtosis> for Feature<T>

where T: Float,

fn from(v: Kurtosis) -> Feature<T>

Converts to this type from the input type.

impl JsonSchema for Kurtosis

fn schema_name() -> String

The name of the generated JSON Schema.

fn schema_id() -> Cow<'static, str>

Returns a string that uniquely identifies the schema produced by this type.

fn json_schema(gen: &mut SchemaGenerator) -> Schema

Generates a JSON Schema for this type.

fn is_referenceable() -> bool

Whether JSON Schemas generated for this type should be re-used where possible using the $ref keyword.

impl Serialize for Kurtosis

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl<T> TryInto<Kurtosis> for Feature<T>

where T: Float,

type Error = &'static str

The type returned in the event of a conversion error.

fn try_into(self) -> Result<Kurtosis, <Self as TryInto<Kurtosis>>::Error>

Performs the conversion.