1 files changed, 0 insertions, 69 deletions
diff --git a/rand/rand_distr/src/unit_ball.rs b/rand/rand_distr/src/unit_ball.rs
deleted file mode 100644
index 9d61627..0000000
--- a/rand/rand_distr/src/unit_ball.rs
+++ /dev/null
@@ -1,69 +0,0 @@
-// Copyright 2019 Developers of the Rand project.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// https://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or https://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-use rand::Rng;
-use crate::{Distribution, Uniform, uniform::SampleUniform};
-use crate::utils::Float;
-
-/// Samples uniformly from the unit ball (surface and interior) in three
-/// dimensions.
-///
-/// Implemented via rejection sampling.
-///
-///
-/// # Example
-///
-/// ```
-/// use rand_distr::{UnitBall, Distribution};
-///
-/// let v: [f64; 3] = UnitBall.sample(&mut rand::thread_rng());
-/// println!("{:?} is from the unit ball.", v)
-/// ```
-#[derive(Clone, Copy, Debug)]
-pub struct UnitBall;
-
-impl<N: Float + SampleUniform> Distribution<[N; 3]> for UnitBall {
-    #[inline]
-    fn sample<R: Rng + ?Sized>(&self, rng: &mut R) -> [N; 3] {
-        let uniform = Uniform::new(N::from(-1.), N::from(1.));
-        let mut x1;
-        let mut x2;
-        let mut x3;
-        loop {
-            x1 = uniform.sample(rng);
-            x2 = uniform.sample(rng);
-            x3 = uniform.sample(rng);
-            if x1*x1 + x2*x2 + x3*x3 <= N::from(1.) {
-                break;
-            }
-        }
-        [x1, x2, x3]
-    }
-}
-
-#[cfg(test)]
-mod tests {
-    use crate::Distribution;
-    use super::UnitBall;
-
-    #[test]
-    fn value_stability() {
-        let mut rng = crate::test::rng(2);
-        let expected = [
-                [0.018035709265959987, -0.4348771383120438, -0.07982762085055706],
-                [0.10588569388223945, -0.4734350111375454, -0.7392104908825501],
-                [0.11060237642041049, -0.16065642822852677, -0.8444043930440075]
-            ];
-        let samples: [[f64; 3]; 3] = [
-                UnitBall.sample(&mut rng),
-                UnitBall.sample(&mut rng),
-                UnitBall.sample(&mut rng),
-            ];
-        assert_eq!(samples, expected);
-    }
-}