Struct StatApproxQuantile

pub struct StatApproxQuantile {
    pub input: Option<Box<Relation>>,
    pub cols: Vec<String>,
    pub probabilities: Vec<f64>,
    pub relative_error: f64,
}

Calculates the approximate quantiles of numerical columns of a DataFrame. It will invoke ‘Dataset.stat.approxQuantile’ (same as ‘StatFunctions.approxQuantile’) to compute the results.

Fields

input: Option<Box<Relation>>

(Required) The input relation.

cols: Vec<String>

(Required) The names of the numerical columns.

probabilities: Vec<f64>

(Required) A list of quantile probabilities.

Each number must belong to [0, 1]. For example 0 is the minimum, 0.5 is the median, 1 is the maximum.

relative_error: f64

(Required) The relative target precision to achieve (greater than or equal to 0).

If set to zero, the exact quantiles are computed, which could be very expensive. Note that values greater than 1 are accepted but give the same result as 1.

Trait Implementations

impl Clone for StatApproxQuantile

fn clone(&self) -> StatApproxQuantile

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for StatApproxQuantile

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

Formats the value using the given formatter.

impl Default for StatApproxQuantile

fn default() -> Self

Returns the “default value” for a type.

impl Message for StatApproxQuantile

fn encoded_len(&self) -> usize

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

fn clear(&mut self)

Clears the message, resetting all fields to their default.

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

where B: BufMut, Self: Sized,

Encodes the message to a buffer.

fn encode_to_vec(&self) -> Vec<u8>

where Self: Sized,

Encodes the message to a newly allocated buffer.

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

where B: BufMut, Self: Sized,

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

fn encode_length_delimited_to_vec(&self) -> Vec<u8>

where Self: Sized,

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

fn decode<B>(buf: B) -> Result<Self, DecodeError>

where B: Buf, Self: Default,

Decodes an instance of the message from a buffer.

fn decode_length_delimited<B>(buf: B) -> Result<Self, DecodeError>

where B: Buf, Self: Default,

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

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

where B: Buf, Self: Sized,

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

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

where B: Buf, Self: Sized,

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

impl PartialEq for StatApproxQuantile

fn eq(&self, other: &StatApproxQuantile) -> 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 StatApproxQuantile