Function parsnip::fbeta_score

pub fn fbeta_score<T>(
    pred: &[T], 
    actual: &[T], 
    beta: f32, 
    average: Average
) -> Result<f32, LengthError> where
    T: Eq,
    T: Hash, 

The fbeta of a dataset

Returns the fbeta score [0, 1]

Supports macro and weighted averages

#[macro_use] extern crate approx; // for approximate equality check
use parsnip::{Average, fbeta_score, LengthError};
let actual = vec![0, 1, 2, 0, 1, 2];
let pred = vec![0, 2, 1, 0, 0, 1];
 
assert_ulps_eq!(fbeta_score(&pred, &actual, 0.5, Average::Macro)?, 0.23809524);
assert_ulps_eq!(fbeta_score(&pred, &actual, 0.5, Average::Weighted)?, 0.23809527);