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Ajay Goyal

153 posts
I am Ajay Goyal, a civil engineering background with a passion for data analysis. I've transitioned from designing infrastructure to decoding data, merging my engineering problem-solving skills with data-driven insights. I am currently working as a Data Analyst in TransOrg. Through my blog, I share my journey and experiences of data analysis.
Process of data filtering in Tableau
Ajay Goyal
  • September 12, 2025

Tableau Types of Filters in Tableau: Examples, and Best Practices

  • 6 minute read
The types of filters in Tableau, including extract, context, normal, and measure filters, help refine data for clearer insights.
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K-means vs DBSCAN
Ajay Goyal
  • August 7, 2025

Statistics Difference between K-Means and DBScan Clustering

  • 7 minute read
K-Means vs DBSCAN: Your guide to choosing the right clustering algorithm for your data.
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Transforming data science with LLMs
Ajay Goyal
  • July 23, 2025

Artificial Intelligence What Are Large Language Models (LLMs)?

  • 5 minute read
LLMs automate text, enhance insights, and transform data-driven decision-making across key industries.
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Image showing Tableau Parameters
Ajay Goyal
  • May 20, 2025

Tableau Tableau Parameters: An Introductory Guide

  • 8 minute read
Unlock dynamic Tableau dashboards with parameters: flexible controls, advanced interactivity, and user-driven analytics.
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PostgreSQL overview
Ajay Goyal
  • May 13, 2025

SQL What Is PostgreSQL? A Comprehensive Guide for Data-Driven Professionals

  • 7 minute read
Advanced, open-source, object-relational database with extensibility, strong SQL/JSON support, scalability, and robust community.
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Image showing Range in Statistics
Ajay Goyal
  • May 9, 2025

Statistics Range in Statistics: A Comprehensive Guide

  • 6 minute read
Comprehensive guide on range in statistics with formula, examples, applications, and advantages.
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relative frequency cycle
Ajay Goyal
  • May 7, 2025

Statistics Relative Frequency in Statistics: Formula, Definition & How to Find Relative Frequency

  • 6 minute read
Quantifies event occurrence, simplifies comparisons, supports Data Analysis, and enhances interpretation with clear proportions.
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Image showing Python Regex capabiltities
Ajay Goyal
  • May 6, 2025

Python Python Regex Explained: How to Search, Match, and Replace Text Efficiently

  • 4 minute read
Python regex enables powerful, flexible pattern matching and text manipulation with the built-in re module.
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Image showing SQL vs NoSQL
Ajay Goyal
  • May 6, 2025

SQL SQL vs NoSQL Databases: Key Differences

  • 6 minute read
Key differences, advantages, and use cases of SQL and NoSQL databases explained clearly and concisely.
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Image showing Array Classification.
Ajay Goyal
  • May 1, 2025

Python A Comprehensive Guide to Types of Arrays in Python Based on Size and Dimensions

  • 6 minute read
Arrays vary by size and dimensions, enabling efficient storage, flexible access, and complex data representation.
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