Function rstats::correlation

pub fn correlation(v1: &[i64], v2: &[i64]) -> Result<f64>

Correlation coefficient of a sample of two integer variables.

Example

use rstats::correlation;
const VEC1:[i64;14] = [1,2,3,4,5,6,7,8,9,10,11,12,13,14];
const VEC2:[i64;14] = [14,13,12,11,10,9,8,7,6,5,4,3,2,1];
assert_eq!(correlation(&VEC1,&VEC2).unwrap(),-1_f64);