Push diff to the lowest possible exponent

Author: LukeMathWalker

src/summary_statistics/means.rs

@@ -256,16 +256,16 @@ mod tests {
         // Computed using SciPy
         let expected_geometric_mean = 0.4345897639796527;
 
-        assert_abs_diff_eq!(a.mean().unwrap(), expected_mean, epsilon = 1e-6);
+        assert_abs_diff_eq!(a.mean().unwrap(), expected_mean, epsilon = 1e-9);
         assert_abs_diff_eq!(
             a.harmonic_mean().unwrap(),
             expected_harmonic_mean,
-            epsilon = 1e-6
+            epsilon = 1e-7
         );
         assert_abs_diff_eq!(
             a.geometric_mean().unwrap(),
             expected_geometric_mean,
-            epsilon = 1e-6
+            epsilon = 1e-12
         );
     }
 
@@ -318,7 +318,7 @@ mod tests {
             assert_abs_diff_eq!(
                 a.central_moment(order).unwrap(),
                 expected_moment,
-                epsilon = 1e-6
+                epsilon = 1e-8
             );
         }
     }
@@ -363,7 +363,7 @@ mod tests {
         let kurtosis = a.kurtosis().unwrap();
         let skewness = a.skewness().unwrap();
 
-        assert_abs_diff_eq!(kurtosis, expected_kurtosis, epsilon = 1e-6);
-        assert_abs_diff_eq!(skewness, expected_skewness, epsilon = 1e-6);
+        assert_abs_diff_eq!(kurtosis, expected_kurtosis, epsilon = 1e-12);
+        assert_abs_diff_eq!(skewness, expected_skewness, epsilon = 1e-8);
     }
 }