MNT: improve object encoding and file handling.

Author: phmbressan

docs/notebooks/monte_carlo_analysis/monte_carlo_analysis_outputs/monte_carlo_class_example.inputs.txt

@@ -230,7 +230,7 @@
     {
      "data": {
       "application/vnd.jupyter.widget-view+json": {
-       "model_id": "c0480c4e31b842fba64def79efc6efac",
+       "model_id": "bad56b36f7ea4202ad8ae4e538587850",
        "version_major": 2,
        "version_minor": 0
       },
@@ -507,7 +507,7 @@
      "name": "stdout",
      "output_type": "stream",
      "text": [
-      "[7166.955881900554, 7020.247272048751, 7311.367348420168, 5346.563222509409, 5624.919119779475]\n"
+      "[4391.364691514904, 7219.639007049733, 6453.201220132505, 8224.181709280812, 7533.468077292466]\n"
      ]
     }
    ],
@@ -776,24 +776,24 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 20,
+   "execution_count": 15,
    "metadata": {},
    "outputs": [
     {
      "name": "stdout",
      "output_type": "stream",
      "text": [
       "The following input file was imported: monte_carlo_analysis_outputs/monte_carlo_class_example.inputs.txt\n",
-      "A total of 10 simulations results were loaded from the following output file: monte_carlo_analysis_outputs/monte_carlo_class_example.outputs.txt\n",
+      "A total of 0 simulations results were loaded from the following output file: monte_carlo_analysis_outputs/monte_carlo_class_example.outputs.txt\n",
       "\n",
-      "The following error file was imported: monte_carlo_analysis_outputs/monte_carlo_class_example.errors.txt                                         \n"
+      "The following error file was imported: monte_carlo_analysis_outputs/monte_carlo_class_example.errors.txt                                        \n"
      ]
     },
     {
      "name": "stderr",
      "output_type": "stream",
      "text": [
-      "/home/phmb/github/RocketPy/rocketpy/simulation/monte_carlo.py:135: UserWarning: This class is still under testing and some attributes may be changed in next versions\n",
+      "/home/phmb/github/RocketPy/rocketpy/simulation/monte_carlo.py:123: UserWarning: This class is still under testing and some attributes may be changed in next versions\n",
       "  warnings.warn(\n"
      ]
     }
@@ -820,7 +820,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 21,
+   "execution_count": 16,
    "metadata": {},
    "outputs": [
     {
@@ -834,10 +834,10 @@
      "name": "stdout",
      "output_type": "stream",
      "text": [
-      "Current iteration: 000099 | Average Time per Iteration: 0.559 s | Estimated time left: 0 s \n",
+      "Current iteration: 000098 | Average Time per Iteration: 0.584 s | Estimated time left: 0 s \n",
       "Completed 100 iterations. In total, 100 simulations are exported.\n",
-      "Total wall time: 59.0 s \n",
-      "Results saved to /home/phmb/github/RocketPy/docs/notebooks/monte_carlo_analysis/monte_carlo_analysis_outputs/monte_carlo_class_example.outputs.txt\n"
+      "Total wall time: 61.4 s \n",
+      "Results saved to monte_carlo_analysis_outputs/monte_carlo_class_example.outputs.txt\n"
      ]
     }
    ],
@@ -877,15 +877,21 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 22,
+   "execution_count": 17,
    "metadata": {},
    "outputs": [
     {
      "name": "stdout",
      "output_type": "stream",
      "text": [
       "A total of 100 simulations results were loaded from the following output file: monte_carlo_analysis_outputs/monte_carlo_class_example.outputs.txt\n",
-      "\n",
+      "\n"
+     ]
+    },
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
       "The following input file was imported: monte_carlo_analysis_outputs/monte_carlo_class_example.inputs.txt                                          \n",
       "The following error file was imported: monte_carlo_analysis_outputs/monte_carlo_class_example.errors.txt\n"
      ]
@@ -898,7 +904,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 23,
+   "execution_count": 18,
    "metadata": {},
    "outputs": [
     {
@@ -907,7 +913,7 @@
        "100"
       ]
      },
-     "execution_count": 23,
+     "execution_count": 18,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -918,7 +924,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 24,
+   "execution_count": 19,
    "metadata": {},
    "outputs": [
     {
@@ -932,21 +938,21 @@
       "\n",
       "                Parameter            Mean       Std. Dev.\n",
       "------------------------------------------------------------\n",
-      "          max_mach_number           0.816           0.120\n",
-      "                 x_impact         605.881         135.419\n",
-      "          impact_velocity          -5.315           0.096\n",
-      "         out_of_rail_time           0.367           0.027\n",
-      "                 apogee_y         384.855          88.737\n",
-      "out_of_rail_stability_margin           2.689           0.074\n",
-      "                  t_final         293.980          33.404\n",
+      "          impact_velocity          -5.279           0.095\n",
+      "         out_of_rail_time           0.357           0.023\n",
+      "          max_mach_number           0.868           0.115\n",
+      "out_of_rail_stability_margin           2.659           0.076\n",
+      "              apogee_time          25.608           1.703\n",
+      " initial_stability_margin           2.598           0.078\n",
+      "                 y_impact         460.823          64.165\n",
+      "     out_of_rail_velocity          25.972           1.930\n",
       "     frontal_surface_wind           0.000           0.000\n",
-      "                   apogee        3191.017         588.334\n",
-      "     out_of_rail_velocity          25.088           2.014\n",
+      "                 apogee_y         395.028          58.848\n",
+      "                 apogee_x         511.538          75.630\n",
       "     lateral_surface_wind           0.000           0.000\n",
-      " initial_stability_margin           2.626           0.075\n",
-      "                 apogee_x         518.860         121.948\n",
-      "                 y_impact         449.608          98.838\n",
-      "              apogee_time          24.864           2.100\n"
+      "                 x_impact         596.502          81.968\n",
+      "                  t_final         306.494          30.999\n",
+      "                   apogee        3419.338         530.485\n"
      ]
     }
    ],
@@ -990,7 +996,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 20,
    "metadata": {},
    "outputs": [],
    "source": [