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Data Analysis Tutorials

Get insights on the latest tools & methods that you can use to analyze your data more effectively. Our data analysis tutorials will help you develop your skills.
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Data Analysis

R-Squared Explained: How Well Does Your Regression Model Fit?

Learn what R-squared means in regression analysis, how to calculate it, and when to use it to evaluate model performance. Compare it to related metrics with examples in R and Python.

Elena Kosourova

May 14, 2025

Data Science

Time Series Decomposition: Understand Trends, Seasonality, and Noise

Learn how to break down time series data into meaningful components like trend, seasonality, and residuals using additive and multiplicative models. Learn about both classical and STL methods. Explore seasonal adjustments and practice forecasting with decomposition models.
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Josef Waples

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Laiba Siddiqui

April 30, 2025

Data Analysis

Hierarchical Clustering: Concept Overview With Examples

Understand the basic concepts of hierarchical clustering, how it works, and how to implement it in Python.
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Austin Chia

April 27, 2025

Excel

Excel ROUND(): The Complete Guide to Rounding in Excel

Learn how to use the ROUND() function and its alternatives in Excel. Learn how to round decimals, integers, and time values.
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Allan Ouko

April 25, 2025

Python

Python Pie Chart: Build and Style with Pandas and Matplotlib

Learn how to build and enhance pie charts using Python’s Matplotlib and Pandas libraries. Discover practical code examples and essential design tips to create clear, readable visuals.
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Javier Canales Luna

April 17, 2025

Excel

Excel Compound Interest Formula: A Comprehensive Guide

Learn to use Excel to calculate compound interest along with practical techniques and real-world applications to enhance your financial analysis skills.
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Arunn Thevapalan

April 17, 2025

Data Science

Understanding the Pareto Distribution: A Comprehensive Guide

Explore the fundamentals of the Pareto distribution and its applications. Learn how this statistical concept can be applied in various fields. Discover practical examples and visual aids to enhance your understanding.
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Vinod Chugani

April 10, 2025

Excel

PivotTable Conditional Formatting: Two Good Methods

Learn two reliable methods for applying PivotTable conditional formatting and avoid common pitfalls.
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Elena Kosourova

April 4, 2025

Data Science

Euler's Number (e) Explained: Its Significance and Applications

Discover why Euler’s number is everywhere—from banking and biology to machine learning and meteorology—and how this constant powers continuous growth and change.
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Amberle McKee

April 3, 2025

Data Science

The Lorenz Curve: A Great Way to Visualize Inequality

Visualize inequality at a glance using the Lorenz curve. Discover how to create and interpret Lorenz curves using Python to analyze inequality across income, crime, and other real-world datasets.
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Amberle McKee

April 3, 2025