diff --git a/DIRECTORY.md b/DIRECTORY.md
index d667a0fe..e785f923 100644
--- a/DIRECTORY.md
+++ b/DIRECTORY.md
@@ -227,6 +227,7 @@
   * [Newton-Raphson-Root](https://github.com/kvedala/C/blob/master/numerical_methods/newton-raphson-root.c)
   * [Qr Decomposition](https://github.com/kvedala/C/blob/master/numerical_methods/qr_decomposition.c)
   * [Qr Eigen Values](https://github.com/kvedala/C/blob/master/numerical_methods/qr_eigen_values.c)
+  * [Realtime Stats](https://github.com/kvedala/C/blob/master/numerical_methods/realtime_stats.c)
   * [Simpsons 1-3Rd Rule](https://github.com/kvedala/C/blob/master/numerical_methods/simpsons_1-3rd_rule.c)
   * [Variance](https://github.com/kvedala/C/blob/master/numerical_methods/variance.c)