numpy

Articles: 11

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Article

Calculating Euclidean Distance with NumPy

In this guide - we'll take a look at how to calculate the Euclidean distance between two points in Python, using Numpy. Euclidean distance is a fundamental distance metric pertaining to systems in Euclidean space. Euclidean space is the classical geometrical space you get familiar with in Math class, typically...

Bilal Hamada

Sep 16, 2021

Article

Guide to Numpy's arange() Function

Numpy is the most popular mathematical computing Python library. It offers a great number of mathematical tools including but not limited to multi-dimensional arrays and matrices, mathematical functions, number generators, and a lot more. One of the fundamental tools in NumPy is the ndarray - an N-dimensional array. Today, we're...

Bilal Hamada

Sep 02, 2021

Article

Random Projection: Theory and Implementation in Python with Scikit-Learn

This guide is an in-depth introduction to an unsupervised dimensionality reduction technique called Random Projections. A Random Projection can be used to reduce the complexity and size of data, making the data easier to process and visualize. It is also a preprocessing technique for input preparation to a classifier or...

Mehreen Saeed

Aug 31, 2021·16 min read

Article

Self-Organizing Maps: Theory and Implementation in Python with NumPy

In this guide, we'll be taking a look at an unsupervised learning model, known as a Self-Organizing Map (SOM), as well as its implementation in Python. We'll be using an RGB Color example to train the SOM and demonstrate its performance and typical usage. Self-Organizing Maps: A General Introduction A...

Mehreen Saeed

Aug 25, 2021·11 min read

Article

Calculating Spearman's Rank Correlation Coefficient in Python with Pandas

This guide is an introduction to Spearman's rank correlation coefficient, its mathematical calculation, and its computation via Python's pandas library. We'll construct various examples to gain a basic understanding of this coefficient and demonstrate how to visualize the correlation matrix via heatmaps. What Is the Spearman Rank Correlation Coefficient? Spearman...

Mehreen Saeed

Aug 23, 2021·10 min read

Article

Matplotlib Stack Plot - Tutorial and Examples

There are many data visualization libraries in Python, yet Matplotlib is the most popular library out of all of them. Matplotlib’s popularity is due to its reliability and utility - it's able to create both simple and complex plots with little code. You can also customize the plots in...

David Landup

Mar 30, 2021·9 min read

Article

Python: How to Flatten a List of Lists

A list is the most flexible data structure in Python. Whereas, a 2D list which is commonly known as a list of lists, is a list object where every item is a list itself - for example: [[1,2,3], [4,5,6], [7,8,9]]. Flattening a list of...

Raksha Shenoy

Nov 02, 2020·6 min read

Article

Generating Synthetic Data with Numpy and Scikit-Learn

In this tutorial, we'll discuss the details of generating different synthetic datasets using Numpy and Scikit-learn libraries. We'll see how different samples can be generated from various distributions with known parameters. We'll also discuss generating datasets for different purposes, such as regression, classification, and clustering. At the end we'll see...

Mehreen Saeed

Oct 14, 2020·9 min read

Article

Remove Element from an Array in Python

This tutorial will go through some common ways for removing elements from Python arrays. Arrays in Python Arrays and lists are not the same thing in Python. Although lists are more commonly used than arrays, the latter still have their use cases. The main difference between the two is that...

Luka Čupić

Aug 31, 2020·3 min read