diff --git a/packages/district/src/layer/country.ts b/packages/district/src/layer/country.ts
index ec043820b7..a282ddced9 100644
--- a/packages/district/src/layer/country.ts
+++ b/packages/district/src/layer/country.ts
@@ -24,7 +24,9 @@ export default class CountryLayer extends BaseLayer {
   }
   protected async addProvinceFill() {
     const { depth } = this.options;
-    const countryConfig = getDataConfig(this.options.geoDataLevel).CHN[depth];
+    const countryConfig = getDataConfig(this.options.geoDataLevel).country.CHN[
+      depth
+    ];
     const fillData = await this.fetchData(countryConfig.fill);
     this.addFillLayer(fillData);
   }
diff --git a/packages/utils/__tests__/statistic.spec.ts b/packages/utils/__tests__/statistic.spec.ts
index bea992c0a2..48380a3ead 100644
--- a/packages/utils/__tests__/statistic.spec.ts
+++ b/packages/utils/__tests__/statistic.spec.ts
@@ -1,10 +1,35 @@
-import { sum } from '../src/statistics';
-describe('sum', () => {
-  it('sum string array', () => {
-    const a = ['1', '2', '3'];
-    const b = [1, 2, 3];
+import { max, mean, min, sum, mode } from '../src/statistics';
+const a = ['1', '2', '3'];
+const b = [1, 2, 3];
+const c = [1, 2, 3, '1', 2, '3', 3];
+describe('statistic', () => {
+  it('sum', () => {
     // @ts-ignore
     expect(sum(a)).toEqual(6);
     expect(sum(b)).toEqual(6);
   });
+  it('max', () => {
+    // @ts-ignore
+    expect(max(a)).toEqual(3);
+    expect(max(b)).toEqual(3);
+  });
+
+  it('min', () => {
+    // @ts-ignore
+    expect(min(a)).toEqual(1);
+    expect(min(b)).toEqual(1);
+  });
+
+  it('mean', () => {
+    // @ts-ignore
+    expect(mean(a)).toEqual(2);
+    // @ts-ignore
+    expect(mean(b)).toEqual(2);
+  });
+
+  it('mode', () => {
+    // @ts-ignore
+    expect(mode(a)).toEqual(1);
+    expect(mode(c)).toEqual(2);
+  });
 });
diff --git a/packages/utils/src/statistics.ts b/packages/utils/src/statistics.ts
index 31f4e2d6db..9a3a05ad7c 100644
--- a/packages/utils/src/statistics.ts
+++ b/packages/utils/src/statistics.ts
@@ -14,7 +14,7 @@ function max(x: number[]) {
       value = x[i];
     }
   }
-  return value;
+  return value * 1;
 }
 
 function min(x: number[]) {
@@ -30,7 +30,7 @@ function min(x: number[]) {
       value = x[i];
     }
   }
-  return value;
+  return value * 1;
 }
 
 function sum(x: number[]) {
@@ -81,7 +81,7 @@ function mode(x: any[]) {
       seenThis++;
     }
   }
-  return value;
+  return value * 1;
 }
 
 export { sum, max, min, mean, mode };
diff --git a/stories/Draw/Components/DrawLine.tsx b/stories/Draw/Components/DrawLine.tsx
index f9b3148cc5..4e28165fea 100644
--- a/stories/Draw/Components/DrawLine.tsx
+++ b/stories/Draw/Components/DrawLine.tsx
@@ -21,6 +21,7 @@ export default class Circle extends React.Component {
       }),
     });
     this.scene = scene;
+    const line = 
 
     scene.on('loaded', () => {
       const drawLine = new DrawLine(scene);