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Technologies
R Programming Tutorial
In our R tutorials, you'll find helpful tips and use cases to grow your programming skills. We'll keep you up to date with the latest techniques.
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Featured
How to Do Linear Regression in R
Learn linear regression, a statistical model that analyzes the relationship between variables. Follow our step-by-step guide to learn the lm() function in R.
Eladio Montero Porras
July 29, 2024
Principal Component Analysis in R Tutorial
In this tutorial, you'll learn how to use R PCA (Principal Component Analysis) to extract data with many variables and create visualizations to display that data.
Zoumana Keita
February 13, 2023
How to Import Data Into R
Find out how to import data into R, including CSV, JSON, Excel, HTML, databases, SAS, SPSS, Matlab, and other files using the popular R packages.
Abid Ali Awan
December 16, 2024
All posts
R median() Function: Find the Middle Value
Learn how to quickly find the middle value of your data using the R median() function. Discover tips for handling missing values and grouping data by categories.
Josef Waples
June 20, 2025
R mean() Function: Get Started with Averages
Calculate the average of numeric, logical, and weighted data using R’s built-in mean functions. Understand how to handle missing values and apply the function to vectors and data frames.
Josef Waples
June 19, 2025
How to Create a Sankey Diagram in Excel, Python, and R
From basic concepts to advanced implementation, learn to build effective Sankey diagrams using popular tools. Discover the key components, best practices, and design principles that make flow visualizations compelling and insightful.
Vinod Chugani
June 13, 2025
Cauchy Distribution: Understanding Heavy-Tailed Data
Explore heavy-tailed distributions where traditional statistical methods don't apply. Discover how the Cauchy distribution effectively models phenomena where extreme events occur more frequently than expected.
Vinod Chugani
March 7, 2025
Understanding the Negative Binomial Distribution: A Full Guide
Discover the intricacies of the negative binomial distribution and its applications. Learn how to model count data effectively. Explore practical examples and visual aids to enhance your understanding.
Vinod Chugani
February 19, 2025
Heteroscedasticity: A Full Guide to Unequal Variance
Explore the concept of heteroscedasticity and its implications in statistical modeling. Learn how to detect and address it. Discover techniques to improve your regression models.
Josef Waples
January 21, 2025
The Q-Q Plot: What It Means and How to Interpret It
Discover how Q-Q plots are a useful visual method to assess normality. Compare observed data to a theoretical distribution like the normal distribution to highlight deviations. Learn to diagnose model fit.
Josef Waples
November 17, 2024
What is Bootstrapping in Statistics? A Deep Dive
Explore how bootstrapping improves the estimation of confidence intervals and standard errors. Learn to distinguish between parametric and non-parametric bootstrapping techniques, and learn about bootstrapping in time series forecasting.
Josef Waples
September 23, 2024
Eigenvectors and Eigenvalues: Key Insights for Data Science
Eigenvectors and eigenvalues are essential for understanding linear transformations. This article covers their geometric interpretation, mathematical calculation, and importance in machine learning.
Islam Salahuddin
September 17, 2024
Chi-Square Test in R: A Complete Guide
Learn how to create a contingency table and perform chi-square tests in R using the chisq.test() function. Discover practical applications and interpret results with confidence.
Arunn Thevapalan
August 29, 2024
QR Decomposition in Machine Learning: A Detailed Guide
Learn about QR decomposition, the matrix factorization technique that decomposes matrix A into the product of an orthogonal matrix Q and an upper triangular matrix R.
Josef Waples
August 9, 2024
How to Use na.rm to Handle Missing Values in R
We set na.rm = TRUE in common R functions to exclude missing (NA) values. This helps us compute accurate statistics and enhances the reliability of our results.
Vidhi Chugh
July 3, 2024