1 files changed, 7 insertions, 1 deletions
diff --git a/src/statistics/math.rs b/src/statistics/math.rs
index b7dd6ac..a0849a3 100644
--- a/src/statistics/math.rs
+++ b/src/statistics/math.rs
@@ -25,7 +25,8 @@ pub trait Monoid: Semigroup {
 }
 
 #[derive(Debug, Clone)]
-struct Record<X, T, D> {
+#[doc(hidden)]
+pub struct Record<X, T, D> {
     x: X,
     tag: T,
     data: D,
@@ -63,6 +64,11 @@ where
         RecordFunc { data: Vec::new() }
     }
 
+    #[doc(hidden)]
+    pub fn data(&self) -> &[Record<X, T, D>] {
+        &self.data
+    }
+
     /// Insert a data point into the record func.
     ///
     /// Note that you should supply the *increment*, not the *absolute value*!