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Data Science Tutorials

Develop your data science skills with tutorials in our blog. We cover everything from intricate data visualizations in Tableau to version control features in Git.
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What is Data Validation in Excel? A Comprehensive Guide to Add, Edit, and Remove Data Validation Rules in Excel

Applying data validation in Excel is simple: Open the 'Data' tab. Go to the 'Data Tools' group. Click on the 'Data Validation' button.
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Elena Kosourova

May 31, 2024

A Detailed Guide to Tableau Architecture: Desktop and Server

Learn about the Tableau Desktop and Tableau Server Architectures. Understand the core framework and data layers for advanced data management and insightful analytics.
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Islam Salahuddin

May 31, 2024

Correlation Matrix In Excel: A Complete Guide to Creating and Interpreting

Learn the statistical concept of correlation, and follow along in calculating and interpreting correlations for a sample dataset, in a step-by-step tutorial.
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Arunn Thevapalan

May 30, 2024

A Comprehensive NoSQL Tutorial Using MongoDB

Learn about NoSQL databases - why NoSQL, how they differ from relational databases, the different types, and design your own NoSQL database using MongoDB.
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Arunn Thevapalan

May 30, 2024

Fine-Tuning Llama 3 and Using It Locally: A Step-by-Step Guide

We'll fine-tune Llama 3 on a dataset of patient-doctor conversations, creating a model tailored for medical dialogue. After merging, converting, and quantizing the model, it will be ready for private local use via the Jan application.
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Abid Ali Awan

May 30, 2024

Cohere API Tutorial: Getting Started With Cohere Models

Cohere offers powerful large language models for various language tasks through their user-friendly Playground or API.
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Moez Ali

May 30, 2024

How to Run Llama 3 Locally With Ollama and GPT4ALL

Run LLaMA 3 locally with GPT4ALL and Ollama, and integrate it into VSCode. Then, build a Q&A retrieval system using Langchain and Chroma DB.
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Abid Ali Awan

March 21, 2025

SQL DDL Commands: The Definitive Guide

Learn about SQL DDL commands and how they help define and manage the structure of database objects.
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Deandra Cutajar

May 28, 2024

Normalization in SQL: A Complete Guide to 1NF Through 5NF

Learn how to normalize SQL databases from 1NF through 5NF. This guide covers each normal form with real-world examples, comparison tables, and best practices for eliminating data redundancy.
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Samuel Shaibu

April 2, 2026

Gemini 1.5 Pro API Tutorial: Getting Started With Google's LLM

To connect to the Gemini 1.5 Pro API, obtain your API key from Google AI for Developers, install the necessary Python libraries, and send requests and receive responses from the Gemini 1.5 Pro model.
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Natasha Al-Khatib

May 27, 2024