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t_test_two_sample

rust_physics_engine::statistics::inference

Function t_test_two_sample 

Source 
pub fn t_test_two_sample(x: &[f64], y: &[f64], equal_var: bool) -> TestResult
Expand description

Two-sample t test of H₀: μₓ = μᵧ. equal_var selects the pooled test; otherwise Welch’s test with Welch-Satterthwaite df.

Analytic cross-check: x = 1..5 vs y = 2,4,…,10 with equal variances gives t = −3/√2.5 = −1.897367 on 8 df (p ≈ 0.094); Welch df is exactly 6.25/1.0625 = 5.882353.

§Panics

Panics unless both samples have at least 2 elements.