Update Pandas_walkthrough.ipynb

Author: marcoalopez

notebooks/Pandas_walkthrough.ipynb

@@ -7,7 +7,7 @@
    "source": [
     "# Pandas\n",
     "\n",
-    "Copyright 2023 Marco A. Lopez-Sanchez.  \n",
+    "Copyright 2023-2025 Marco A. Lopez-Sanchez.  \n",
     "Content under [Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) License](http://creativecommons.org/licenses/by-nc-sa/4.0/).\n",
     "\n",
     "> **Goal**:  \n",
@@ -990,8 +990,8 @@
     "\n",
     "> 👉 When subsetting a DataFrame it is good practice to use the ``.copy()`` method because what you get by default is a view of the original DataFrame and all modifications you make to this new DataFrame will affect the original one. This is:  \n",
     ">```python\n",
-    ">new_df = df.loc[['CO_eclogite', 'CO_granulite', 'CO_pyroxenite']] ❌  \n",
-    ">new_df = df.loc[['CO_eclogite', 'CO_granulite', 'CO_pyroxenite']].copy() ✅  \n",
+    ">new_df = df.loc[:, ['CO_eclogite', 'CO_granulite', 'CO_pyroxenite']] ❌  \n",
+    ">new_df = df.loc[:, ['CO_eclogite', 'CO_granulite', 'CO_pyroxenite']].copy() ✅  \n",
     ">```\n",
     "> ⚠️ Beware! Contrary to regular Python or Numpy, the Pandas ``.loc`` method **includes** the  index stop point so that ``df.loc[0:2]`` is equivalent to ``array[0:3]``"
    ]
@@ -2019,9 +2019,9 @@
      "name": "stdout",
      "output_type": "stream",
      "text": [
-      "Notebook tested in 2024-04-10 using:\n",
-      "Python 3.11.8 | packaged by Anaconda, Inc. | (main, Feb 26 2024, 21:34:05) [MSC v.1916 64 bit (AMD64)]\n",
-      "Pandas 2.1.4\n"
+      "Notebook tested in 2025-01-22 using:\n",
+      "Python 3.12.4 | packaged by Anaconda, Inc. | (main, Jun 18 2024, 15:03:56) [MSC v.1929 64 bit (AMD64)]\n",
+      "Pandas 2.2.3\n"
      ]
     }
    ],
@@ -2038,7 +2038,7 @@
  ],
  "metadata": {
   "kernelspec": {
-   "display_name": "Python 3 (ipykernel)",
+   "display_name": "main",
    "language": "python",
    "name": "python3"
   },
@@ -2052,12 +2052,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.11.8"
-  },
-  "vscode": {
-   "interpreter": {
-    "hash": "073408933f31e8ac7f6b4bf29a6f48e1a2f613d7d5b6e5c6c58fd8fdc8389e42"
-   }
+   "version": "3.12.4"
   }
  },
  "nbformat": 4,