Enum SliceAgg 

pub enum SliceAgg {
    Sum,
    Count,
    Mean,
    Var {
        ddof: i64,
    },
    Std {
        ddof: i64,
    },
    Min,
    Max,
}

How ArrowRle::slice_agg reduces each slice. Null values are skipped, as in polars and pandas.

Variants

Sum

The sum over all positions, in the values’ type; 0 for an empty slice.

Count

The number of positions with a non-null value (Int64).

Mean

The mean over non-null positions (Float64), null if there are none.

Var

The variance with ddof delta degrees of freedom (Float64), null if there are ddof or fewer non-null positions.

Fields

ddof: i64

Std

The square root of SliceAgg::Var.

Fields

ddof: i64

Min

The smallest value ignoring NaN, in the values’ type; null if none.

Max

The largest value ignoring NaN, in the values’ type; null if none.

Trait Implementations

impl Clone for SliceAgg

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 SliceAgg

impl Debug for SliceAgg

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

Formats the value using the given formatter.

impl Eq for SliceAgg

impl PartialEq for SliceAgg

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for SliceAgg