From 80c1fd45057eb9decfb780177bae24ab885113d6 Mon Sep 17 00:00:00 2001
From: Iago-lito <iago-lito@users.noreply.github.com>
Date: Mon, 7 Aug 2023 13:54:18 +0200
Subject: [PATCH 1/2] Fix invalid `k` letter in Poisson formula docs.

For some reason, these formulae used a mixture of `k` and `x` for the same parameter. I haven't checked whether this problem is spread more widely within the docs though.
---
 src/distribution/poisson.rs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/distribution/poisson.rs b/src/distribution/poisson.rs
index 0c1b2379..9879b6a8 100644
--- a/src/distribution/poisson.rs
+++ b/src/distribution/poisson.rs
@@ -229,7 +229,7 @@ impl Discrete<u64, f64> for Poisson {
     /// # Formula
     ///
     /// ```ignore
-    /// (λ^k * e^(-λ)) / x!
+    /// (λ^x * e^(-λ)) / x!
     /// ```
     ///
     /// where `λ` is the rate
@@ -244,7 +244,7 @@ impl Discrete<u64, f64> for Poisson {
     /// # Formula
     ///
     /// ```ignore
-    /// ln((λ^k * e^(-λ)) / x!)
+    /// ln((λ^x * e^(-λ)) / x!)
     /// ```
     ///
     /// where `λ` is the rate

From 73865d89b56986f7c77c47cf0ad127218e2ad232 Mon Sep 17 00:00:00 2001
From: Iago-lito <iago-lito@users.noreply.github.com>
Date: Sun, 10 Mar 2024 22:53:09 +0100
Subject: [PATCH 2/2] Fix invalid k letter in hypergeometric formula docs.

Done according to [this comment](https://github.com/statrs-dev/statrs/pull/192#issuecomment-1986526127) I.. think?
---
 src/distribution/hypergeometric.rs | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/src/distribution/hypergeometric.rs b/src/distribution/hypergeometric.rs
index 0ac8e750..2aefe1da 100644
--- a/src/distribution/hypergeometric.rs
+++ b/src/distribution/hypergeometric.rs
@@ -140,8 +140,8 @@ impl DiscreteCDF<u64, f64> for Hypergeometric {
     /// # Formula
     ///
     /// ```ignore
-    /// 1 - ((n choose k+1) * (N-n choose K-k-1)) / (N choose K) * 3_F_2(1,
-    /// k+1-K, k+1-n; k+2, N+k+2-K-n; 1)
+    /// 1 - ((n choose x+1) * (N-n choose K-x-1)) / (N choose K) * 3_F_2(1,
+    /// x+1-K, x+1-n; k+2, N+x+2-K-n; 1)
     /// ```
     ///
     /// where `N` is population, `K` is successes, `n` is draws,
@@ -150,7 +150,7 @@ impl DiscreteCDF<u64, f64> for Hypergeometric {
     /// org/wiki/Generalized_hypergeometric_function)
     ///
     /// Calculated as a discrete integral over the probability mass
-    /// function evaluated from 0..k+1
+    /// function evaluated from 0..x+1
     fn cdf(&self, x: u64) -> f64 {
         if x < self.min() {
             0.0
@@ -174,8 +174,8 @@ impl DiscreteCDF<u64, f64> for Hypergeometric {
     /// # Formula
     ///
     /// ```ignore
-    /// 1 - ((n choose k+1) * (N-n choose K-k-1)) / (N choose K) * 3_F_2(1,
-    /// k+1-K, k+1-n; k+2, N+k+2-K-n; 1)
+    /// 1 - ((n choose x+1) * (N-n choose K-x-1)) / (N choose K) * 3_F_2(1,
+    /// x+1-K, x+1-n; x+2, N+x+2-K-n; 1)
     /// ```
     ///
     /// where `N` is population, `K` is successes, `n` is draws,
@@ -184,7 +184,7 @@ impl DiscreteCDF<u64, f64> for Hypergeometric {
     /// org/wiki/Generalized_hypergeometric_function)
     ///
     /// Calculated as a discrete integral over the probability mass
-    /// function evaluated from (k+1)..max
+    /// function evaluated from (x+1)..max
     fn sf(&self, x: u64) -> f64 {
         if x < self.min() {
             1.0