Struct UniformDistribution 

pub struct UniformDistribution { /* private fields */ }

👎Deprecated since 54.0.0:

Part of the unused Statistics V2 framework; see https://github.com/apache/datafusion/pull/22071

Uniform distribution, represented by its range. If the given range extends towards infinity, the distribution will be improper – which is OK. For a more in-depth discussion, see:

https://en.wikipedia.org/wiki/Continuous_uniform_distribution https://en.wikipedia.org/wiki/Prior_probability#Improper_priors

Implementations

impl UniformDistribution

pub fn data_type(&self) -> DataType

pub fn mean(&self) -> Result<ScalarValue, DataFusionError>

Computes the mean value of this distribution. In case of improper distributions (i.e. when the range is unbounded), the function returns a NULL ScalarValue.

pub fn median(&self) -> Result<ScalarValue, DataFusionError>

pub fn variance(&self) -> Result<ScalarValue, DataFusionError>

Computes the variance value of this distribution. In case of improper distributions (i.e. when the range is unbounded), the function returns a NULL ScalarValue.

pub fn range(&self) -> &Interval

Trait Implementations

impl Clone for UniformDistribution

fn clone(&self) -> UniformDistribution

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for UniformDistribution

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

Formats the value using the given formatter.

impl PartialEq for UniformDistribution

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

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for UniformDistribution