initial upload

test/old_tests/inversion_ASCII/check_obj_func.ipynb

@@ -0,0 +1,66 @@
+{
+ "cells": [
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "# check the change of objective values\n",
+    "\n",
+    "import matplotlib.pyplot as plt\n",
+    "import numpy as np\n",
+    "\n",
+    "fpath='objective_function.txt'\n",
+    "\n",
+    "objs=[]\n",
+    "\n",
+    "with open(fpath) as f:\n",
+    "    lines = f.readlines()\n",
+    "\n",
+    "    for l in lines:\n",
+    "        if(l.startswith('i_inv')):\n",
+    "            continue\n",
+    "        objs.append(float(l.strip().split(',')[1]))\n",
+    "\n",
+    "\n",
+    "plt.xlabel('iteration')\n",
+    "plt.ylabel('objective function value')\n",
+    "plt.plot(objs)\n"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": []
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "Python 3.9.1 64-bit ('3.9.1')",
+   "language": "python",
+   "name": "python3"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
+   "version": "3.9.1"
+  },
+  "vscode": {
+   "interpreter": {
+    "hash": "02f83e1f4cd9619657a6845405e2dd67c4de23753ba48bca5dce2ebf57b3813a"
+   }
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 2
+}