Enum Aggregate 

pub enum Aggregate {
    None,
    Count,
    Distinct,
    Sum,
    Mean,
    Median,
    Stdev,
    Quantile,
    Min,
    Max,
    First,
    Last,
}

What a Y value is, per X (and color): the column as it is, or an aggregate of the rows that share it.

Variants

None

Count

Distinct

The distinct values of Y: nunique of the query language, nulls left out.

Sum

Mean

Median

Stdev

The sample standard deviation (one degree of freedom); a group of one row has none.

Quantile

A percentile of Y, linearly interpolated: YEncoding::quantile.

Min

Max

First

The first and last Y of each group in the view’s row order: its sort, or the order the rows were read in.

Last

Implementations

impl Aggregate

pub const ALL: [Self; 12]

pub fn label(self) -> &'static str

pub fn named(self, quantile: u8) -> String

How it reads in a title or a column name: a quantile as its percentile, p90.

pub fn follows_row_order(self) -> bool

Whether it reads the rows in the view’s order.

pub fn is_fractional(self) -> bool

Whether every value it makes may have a fraction, whatever Y is.

pub fn takes_any_y(self) -> bool

Whether Y may be any column, not only a number: a count of its distinct values is a number whatever they are.

pub fn runs_cumulative(self) -> bool

Whether cumulative can run with it: the rows run as a total, which for a count, sum, mean, median, min or max is what was asked. A running sum of distinct counts is not the distinct count so far, nor one of deviations, percentiles or first and last values anything: those take none.

pub fn is_count(self) -> bool

Whether every value it makes is a whole number, whatever Y is.

Trait Implementations

impl Clone for Aggregate

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Aggregate

impl Debug for Aggregate

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

Formats the value using the given formatter.

impl Default for Aggregate

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for Aggregate

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for Aggregate

impl PartialEq for Aggregate

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for Aggregate

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Aggregate