add necessary package

Author: lidangzzz

packages/hedgehog-core/package-lock.json

@@ -32,6 +32,10 @@
         "esbuild-loader": "^2.9.1",
         "gpu.js": "^2.9.5",
         "mathjs": "^7.1.0",
+        "ml-hclust": "^3.0.0",
+        "ml-matrix": "^6.8.0",
+        "ml-pca": "^4.0.2",
+        "ml-regression-simple-linear": "^2.0.3",
         "nerdamer": "^1.1.5",
         "sync-fetch": "^0.3.0",
         "webpack": "^5.21.2",

packages/hedgehog-core/package.json

@@ -13,7 +13,7 @@ export class Chol {
     const n = A.rows;
 
     //matrix L
-    let L = new Mat().zeros(n, n);
+    const L = new Mat().zeros(n, n);
 
     //iteration
     for (let i = 0; i < n; i++) {
@@ -41,7 +41,7 @@ export class LU {
   U: Mat;
   P: Mat;
   constructor(A: Mat) {
-    let result = lup(A.val);
+    const result = lup(A.val);
     this.L = new Mat(result.L as any);
     this.U = new Mat(result.U as any);
     this.P = new Mat(result.P);
@@ -53,7 +53,7 @@ export class QR {
   Q: Mat;
   R: Mat;
   constructor(A: Mat) {
-    let result = qr(A.val);
+    const result = qr(A.val);
     this.Q = new Mat(result.Q as any);
     this.R = new Mat(result.R as any);
   }

packages/hedgehog-core/src/lib/algebra.ts

@@ -1,6 +1,6 @@
 import { Mat } from './matrix';
 
-function to_matrix(A: Mat | number[][] | number[] | number): Mat  {
+function to_matrix(A: Mat | number[][] | number[] | number): Mat {
   if (A instanceof Mat) {
     return A.clone();
   }
@@ -110,5 +110,5 @@ export default {
   tan,
   tanh,
   pow,
-  round,
+  round
 };