From 97d9cee7321a85ef01070d87db89fb7d35403593 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bj=C3=B6rn=20Lindqvist?= <bjourne@gmail.com>
Date: Fri, 23 Feb 2018 23:47:55 +0100
Subject: [PATCH] math.matrices: rename for consistency

Getting the sample cov matrix is actually much more common than getting
the population one.
---
 basis/math/matrices/matrices-tests.factor | 2 +-
 basis/math/matrices/matrices.factor       | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/basis/math/matrices/matrices-tests.factor b/basis/math/matrices/matrices-tests.factor
index e7627cfa09..3855357b46 100644
--- a/basis/math/matrices/matrices-tests.factor
+++ b/basis/math/matrices/matrices-tests.factor
@@ -312,7 +312,7 @@ CONSTANT: test-points {
         { 23+59/147 6+15/49 27+17/49 }
     }
 } [
-    test-points cov-matrix
+    test-points population-cov-matrix
 ] unit-test
 
 {
diff --git a/basis/math/matrices/matrices.factor b/basis/math/matrices/matrices.factor
index 5eb5a6cde1..0cab9a1472 100644
--- a/basis/math/matrices/matrices.factor
+++ b/basis/math/matrices/matrices.factor
@@ -222,7 +222,7 @@ ERROR: negative-power-matrix m n ;
 : cov-matrix-ddof ( matrix ddof -- cov )
     '[ _ cov-ddof ] cartesian-matrix-column-map ; inline
 
-: cov-matrix ( matrix -- cov ) 0 cov-matrix-ddof ; inline
+: population-cov-matrix ( matrix -- cov ) 0 cov-matrix-ddof ; inline
 
 : sample-cov-matrix ( matrix -- cov ) 1 cov-matrix-ddof ; inline