diff --git a/__tests__/Bandwidth__Test.re b/__tests__/Bandwidth__Test.re
new file mode 100644
index 00000000..e8dfcf8f
--- /dev/null
+++ b/__tests__/Bandwidth__Test.re
@@ -0,0 +1,19 @@
+open Jest;
+open Expect;
+
+[@bs.val] [@bs.module "science"] [@bs.scope ("stats", "bandwidth")]
+external nrd0: array(float) => float = "nrd0";
+
+[@bs.val] [@bs.module "science"] [@bs.scope ("stats", "bandwidth")]
+external nrd: array(float) => float = "nrd";
+
+describe("Bandwidth", () => {
+  test("nrd0 1", () => {
+    let data = [|1., 4., 3., 2.|];
+    expect(nrd0(data)) |> toEqual(0.7635139420854616);
+  });
+  test("nrd0 2", () => {
+    let data = [|1., 4., 3., 2.|];
+    expect(nrd(data)) |> toEqual(0.899249754011766);
+  });
+});
\ No newline at end of file
diff --git a/package.json b/package.json
index aab31893..6d5c6342 100644
--- a/package.json
+++ b/package.json
@@ -60,7 +60,8 @@
     "react-use": "^13.27.0",
     "reason-react": ">=0.7.0",
     "reschema": "1.3.0",
-    "tailwindcss": "1.2.0"
+    "tailwindcss": "1.2.0",
+    "science": "1.9.3"
   },
   "alias": {
     "react": "./node_modules/react",
diff --git a/yarn.lock b/yarn.lock
index 3f52b481..01e751af 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -8579,6 +8579,11 @@ scheduler@^0.19.0:
     loose-envify "^1.1.0"
     object-assign "^4.1.1"
 
+science@1.9.3:
+  version "1.9.3"
+  resolved "https://registry.yarnpkg.com/science/-/science-1.9.3.tgz#ec89bac44aeff2e5a2d749aa496f377089903dd4"
+  integrity sha1-7Im6xErv8uWi10mqSW83cImQPdQ=
+
 screenfull@^5.0.0:
   version "5.0.2"
   resolved "https://registry.yarnpkg.com/screenfull/-/screenfull-5.0.2.tgz#b9acdcf1ec676a948674df5cd0ff66b902b0bed7"