Course Content

# Python Clustering Demystified: Exploring Data Groups

Python Clustering Demystified: Exploring Data Groups

## Introduction

Note

To make it easier for you to go through the project, it would be nice to know the following topics:

- Introduction to pandas ;
- Intermediate pandas;
- Visualization in Python with matplotlib;
- Cluster analysis

P.S. Even without knowledge of these topics, you can complete the project.

**Clustering** is a technique in data mining and machine learning that groups similar data points together. The goal of clustering is to divide a dataset into groups such that data points within a group are more similar to each other than to those in other groups. Clustering is often used in applications such as image segmentation, market segmentation, and anomaly detection.

In Python, there are several libraries that can be used to perform clustering, including `scikit-learn`

, `pandas`

, and `numpy`

. To use clustering in Python, you typically start by importing the necessary libraries, loading your dataset, and then defining the clustering algorithm you want to use.

For example, to use the **K-Means** algorithm in `scikit-learn`

, you would first import the `KMeans`

class and then create an instance of the class by specifying the number of clusters you want to use. Once you have your clustering algorithm instance, you can fit it to your data by using the fit method.

To evaluate the performance of your clustering algorithm, you can use evaluation metrics such as silhouette score, Davies-Bouldin index, and Calinski-Harabasz index. Additionally, you can use dimensionality reduction techniques such as `PCA`

or `t-SNE`

to visualize the clusters in high-dimensional data.

It's important to note that clustering is an unsupervised method, meaning that it doesn't require labeled data to work and the output is not clear as classification, it's a way to explore the data and try to find patterns, so the interpretation of the results is an important step. Let's start with our project!

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