Data Science Articles

Artturi Jalli

Updated on May 22, 2025

The @ symbol in Python is used to apply a decorator to a function or method to extend its functionality, or to help perform matrix multiplication. Here's what to know about each use case.

Prakhar Rathi

Updated on May 22, 2025

Pip freeze only installs those packages that were installed using the pip install command. However, pip is not the only python package manager.

Kamil Krzyk

Updated on May 22, 2025

A cost function in machine learning quantifies the error between a model’s predicted values and actual values, letting us measure how well a model's parameters fit given data. I’ll introduce you to two often-used regression cost functions: MAE and MSE.

Nikola Ilic

Updated on May 22, 2025

Dynamic filtering allows Power BI users to customize how data is displayed and interact with the data without using bookmarks or buttons. Follow these steps to create a dynamic filter in Power BI.

Akshay Kumar

Updated on May 22, 2025

Base64 is a binary-to-text encoding scheme that represents binary data in an ASCII string format. It allows data stored in binary to travel across text channels.

Philip Wilkinson

Updated on May 22, 2025

A Python linked list is an abstract data type that presents a linear collection of data organized as nodes that then link to another node. Build your own with this guide. 

Paras Varshney

Updated on May 22, 2025

Quantile-quantile (Q-Q) plots are used to check whether data follows a theoretical distribution by comparing the quantiles of the observed and theoretical data. Take a closer look at how Q-Q plots work and how to interpret them.

Akshay Kumar

Updated on May 22, 2025

Binary search is an efficient algorithm for searching a sorted list of data to find an item. Here’s an overview of how it works, how it compares to linear search, how to implement it in Python and its benefits and downsides.

Francesco Bellelli

Updated on May 22, 2025

A Voronoi diagram (or Dirichlet tessellation or Thiessen polygons) is a type of tessellation pattern where points on a plane are divided into exactly n number of cells, which enclose a region of the plane that is closest to each point.

Giorgos Myrianthous

Updated on May 22, 2025

Bash commands are an important part of the data scientist’s toolkit. This guide introduces you to some of the most important ones.