Function corr 

pub fn corr<T: Scalar>(scores: &Vec<T>, labels: &Vec<T>) -> Result<T, EvalError>

Computes the linear correlation between scores and labels

Arguments

• scores - score vector
• labels - label vector

Examples

use eval_metrics::regression::corr;
let scores = vec![2.3, 5.1, -3.2, 7.1, -4.4];
let labels = vec![1.7, 4.3, -4.1, 6.5, -3.2];
let metric = corr(&scores, &labels)?;