Function parsnip::categorical_accuracy

pub fn categorical_accuracy<T>(
    pred: &[T], 
    actual: &[T]
) -> Result<f32, LengthError> where
    T: Eq, 

The categorical accuracy of a dataset

Returns a float where 1.0 is a perfectly accurate dataset

use parsnip::categorical_accuracy;
let pred = vec![0, 0, 0 , 1, 2];
let actual = vec![1, 1, 1, 1, 2];
assert_eq!(categorical_accuracy(&pred, &actual)?, 0.4);