Function smartnoise_runtime::utilities::broadcast_map

pub fn broadcast_map<T, U>(
    left: ArrayD<T>, 
    right: ArrayD<T>, 
    operator: &dyn Fn(&T, &T) -> U
) -> Result<ArrayD<U>> where
    T: Clone,
    U: Default, 

Broadcast left and right to match each other, and map an operator over the pairs.

Arguments

• left - Left vector to map over.
• right - Right vector to map over.
• operator - Function to apply to each pair.

Return

An array of mapped data.

Example

use smartnoise_validator::errors::*;
use ndarray::prelude::*;
use smartnoise_runtime::utilities::broadcast_map;
let left: ArrayD<f64> = arr1(&[1., -2., 3., 5.]).into_dyn();
let right: ArrayD<f64> = arr1(&[2.]).into_dyn();
let mapped: Result<ArrayD<f64>> = broadcast_map(left, right, &|l, r| l.max(r.clone()));
println!("{:?}", mapped); // [2., 2., 3., 5.]