Trait Numeric 

pub trait Numeric: Copy + PartialOrd {
    const DTYPE: DType;
    const ZERO: Self;
    const ONE: Self;

    // Required methods
    fn into_column(values: Vec<Self>) -> Column;
    fn is_missing(self) -> bool;
    fn to_f64(self) -> f64;
    fn try_from_f64(x: f64) -> Option<Self>;
    fn wrapping_add(self, other: Self) -> Self;
    fn wrapping_sub(self, other: Self) -> Self;
    fn wrapping_mul(self, other: Self) -> Self;
    fn wrapping_abs(self) -> Self;
}

A numeric column element type. Implemented for f64 and i64; adding i32 / f32 / u64 later is just another impl plus a dispatch arm.

Required Associated Constants

const DTYPE: DType

The column dtype backed by this element type.

const ZERO: Self

Additive identity (cumsum seed).

const ONE: Self

Multiplicative identity (cumprod seed).

Required Methods

fn into_column(values: Vec<Self>) -> Column

Wrap a computed buffer back into a Column of this element’s dtype.

fn is_missing(self) -> bool

Whether this element is the missing sentinel (NaN for f64; never i64).

fn to_f64(self) -> f64

Widen to f64 (lossless for both supported types within range).

fn try_from_f64(x: f64) -> Option<Self>

Narrow from f64 losslessly, or None when the value would not fit (non-integral / out of range / NaN for i64). Powers the keep-vs-promote decision in clip / where / mask / assignment.

fn wrapping_add(self, other: Self) -> Self

Wrapping add (matches pandas/numpy int64 overflow; plain + for f64).

fn wrapping_sub(self, other: Self) -> Self

Wrapping subtract.

fn wrapping_mul(self, other: Self) -> Self

Wrapping multiply.

fn wrapping_abs(self) -> Self

Wrapping absolute value (abs(i64::MIN) == i64::MIN, like pandas).

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementations on Foreign Types

impl Numeric for f32

const DTYPE: DType = DType::F32

const ZERO: Self = 0.0

const ONE: Self = 1.0

fn into_column(values: Vec<Self>) -> Column

fn is_missing(self) -> bool

fn to_f64(self) -> f64

fn try_from_f64(x: f64) -> Option<Self>

fn wrapping_add(self, other: Self) -> Self

fn wrapping_sub(self, other: Self) -> Self

fn wrapping_mul(self, other: Self) -> Self

fn wrapping_abs(self) -> Self

impl Numeric for f64

const DTYPE: DType = DType::F64

const ZERO: Self = 0.0

const ONE: Self = 1.0

fn into_column(values: Vec<Self>) -> Column

fn is_missing(self) -> bool

fn to_f64(self) -> f64

fn try_from_f64(x: f64) -> Option<Self>

fn wrapping_add(self, other: Self) -> Self

fn wrapping_sub(self, other: Self) -> Self

fn wrapping_mul(self, other: Self) -> Self

fn wrapping_abs(self) -> Self

impl Numeric for i32

const DTYPE: DType = DType::I32

const ZERO: Self = 0

const ONE: Self = 1

fn into_column(values: Vec<Self>) -> Column

fn is_missing(self) -> bool

fn to_f64(self) -> f64

fn try_from_f64(x: f64) -> Option<Self>

fn wrapping_add(self, other: Self) -> Self

fn wrapping_sub(self, other: Self) -> Self

fn wrapping_mul(self, other: Self) -> Self

fn wrapping_abs(self) -> Self

impl Numeric for i64

const DTYPE: DType = DType::I64

const ZERO: Self = 0

const ONE: Self = 1

fn into_column(values: Vec<Self>) -> Column

fn is_missing(self) -> bool

fn to_f64(self) -> f64

fn try_from_f64(x: f64) -> Option<Self>

fn wrapping_add(self, other: Self) -> Self

fn wrapping_sub(self, other: Self) -> Self

fn wrapping_mul(self, other: Self) -> Self

fn wrapping_abs(self) -> Self

Implementors