[skip ci] added toc

Author: Snowwpanda

30_introduction_data_exploration.ipynb

@@ -9,6 +9,43 @@
     "# Introduction to Libraries"
    ]
   },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "# Table of Contents\n",
+    "  - [Introduction to Libraries](#Introduction-to-Libraries)\n",
+    "    - [Why are libraries important?](#Why-are-libraries-important?)\n",
+    "    - [Finding the right Library](#Finding-the-right-Library)\n",
+    "      - [What is Pandas?](#What-is-Pandas?)\n",
+    "      - [Why We Need Pandas with Python](#Why-We-Need-Pandas-with-Python)\n",
+    "      - [How to use a library](#How-to-use-a-library)\n",
+    "        - [Installing a library](#Installing-a-library)\n",
+    "        - [Importing the library](#Importing-the-library)\n",
+    "        - [Accessing its functions](#Accessing-its-functions)\n",
+    "        - [Getting help and inspiration](#Getting-help-and-inspiration)\n",
+    "    - [First step: Data import and exploration](#First-step:-Data-import-and-exploration)\n",
+    "    - [Exercise reading in data](#Exercise-reading-in-data)\n",
+    "    - [Playground](#Playground)\n",
+    "      - [Data exploration](#Data-exploration)\n",
+    "  - [Building the plot from the scratch](#Building-the-plot-from-the-scratch)\n",
+    "    - [Steps:](#Steps:)\n",
+    "    - [Finding the limits <a name=\"limits\"></a>](#Finding-the-limits-<a-name=\"limits\"></a>)\n",
+    "    - [Cleaning missing values <a name=\"clean\"></a>](#Cleaning-missing-values-<a-name=\"clean\"></a>)\n",
+    "      - [Exercise: Complete Happiness](#Exercise:-Complete-Happiness)\n",
+    "    - [Adding regional indicator <a name=\"adding\"></a>](#Adding-regional-indicator-<a-name=\"adding\"></a>)\n",
+    "      - [Exercise: Final Happiness](#Exercise:-Final-Happiness)\n",
+    "    - [Plotting basic scatter plot <a name=\"scatter\"></a>](#Plotting-basic-scatter-plot-<a-name=\"scatter\"></a>)\n",
+    "    - [Making frames per year <a name=\"frames\"></a>](#Making-frames-per-year-<a-name=\"frames\"></a>)\n",
+    "      - [Adding slider bar for time scale <a name=\"slider\"></a>](#Adding-slider-bar-for-time-scale-<a-name=\"slider\"></a>)\n",
+    "    - [Adding pause-play button <a name=\"button\"></a>](#Adding-pause-play-button-<a-name=\"button\"></a>)\n",
+    "    - [Using bubble size as a variable <a name=\"size\"></a>](#Using-bubble-size-as-a-variable-<a-name=\"size\"></a>)\n",
+    "    - [Classify into categories <a name=\"color\"></a>](#Classify-into-categories-<a-name=\"color\"></a>)\n",
+    "      - [Exercise Frames with category](#Exercise-Frames-with-category)\n",
+    "      - [Bonus Exercise Fixing a library](#Bonus-Exercise-Fixing-a-library)\n",
+    "      - [References:](#References:)"
+   ]
+  },
   {
    "cell_type": "markdown",
    "metadata": {
@@ -402,7 +439,7 @@
    "source": [
     "Lets break down the steps we will go through during this notebook.\n",
     "\n",
-    "## Steps:\n",
+    "## Steps\n",
     "* [Finding the limits](#limits)\n",
     "* [Cleaning missing values](#clean)\n",
     "* [Adding regional indicator](#adding)\n",
@@ -1258,7 +1295,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.10.15"
+   "version": "3.10.17"
   }
  },
  "nbformat": 4,