Enum AggregationFn 

pub enum AggregationFn {
    Count,
    Sum,
    Avg,
    Min,
    Max,
}

How the value field is combined at each pivot intersection.

Variants

Count

Number of non-null values.

Sum

Numeric sum. Integers stay integers until a decimal (or i64 overflow) forces promotion to f64.

Avg

Numeric mean; always produces CellValue::Decimal.

Min

Smallest value under compare_cells; preserves the source kind.

Max

Largest value under compare_cells; preserves the source kind.

Implementations

impl AggregationFn

pub fn all() -> [AggregationFn; 5]

All functions, in the order pickers should present them.

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

Short label (“Count”, “Sum”, …).

pub fn caption(&self, field_name: &str) -> String

Header caption for the value area, e.g. "Sum of Amount".

Trait Implementations

impl Clone for AggregationFn

fn clone(&self) -> AggregationFn

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for AggregationFn

impl Debug for AggregationFn

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

Formats the value using the given formatter.

impl Default for AggregationFn

fn default() -> AggregationFn

Returns the “default value” for a type.

impl Eq for AggregationFn

impl Hash for AggregationFn

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for AggregationFn

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for AggregationFn