Function parsnip::precision [−][src]
pub fn precision<T>(
pred: &[T],
actual: &[T],
average: Average
) -> Result<f32, LengthError> where
T: Eq,
T: Hash,
The precision of a dataset
Returns a float where a 1.0 is a perfectly precise result set
Supports macro and weighted averages
#[macro_use] extern crate approx; // for approximate equality check use parsnip::{Average, precision}; let actual = vec![0, 1, 2, 0, 1, 2]; let pred = vec![0, 2, 1, 0, 0, 1]; assert_ulps_eq!(precision(&pred, &actual, Average::Macro)?, 0.22222222);