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ANOVA

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Model Perspective
Model Perspective
Dec 1, 2022 · Fundamentals

Mastering One‑Way and Multi‑Factor ANOVA in R: From Theory to Code

This article explains the principles of one‑way, two‑way and multi‑factor ANOVA, demonstrates how to perform them in R using aov(), lm() and anova(), and shows post‑hoc comparisons with TukeyHSD as well as correlation testing with cor() and cor.test().

ANOVARTukey test
0 likes · 10 min read
Mastering One‑Way and Multi‑Factor ANOVA in R: From Theory to Code
Model Perspective
Model Perspective
Nov 20, 2022 · Fundamentals

Mastering Multiple Linear Regression: Models, ANOVA, and Dummy Variables

This article explains the fundamentals of multiple linear regression, covering model formulation, least‑squares estimation, ANOVA tables, adjusted R‑squared, standard error, hypothesis testing for coefficients, and the use of dummy variables for categorical predictors.

ANOVAadjusted R-squareddummy variables
0 likes · 6 min read
Mastering Multiple Linear Regression: Models, ANOVA, and Dummy Variables
Model Perspective
Model Perspective
Nov 20, 2022 · Fundamentals

How Simple Linear Regression Predicts Outcomes: Model, Assumptions, and Evaluation

This article explains the simple linear regression model, its six key assumptions, how to evaluate the fit using ANOVA and the coefficient of determination, and covers hypothesis testing and confidence intervals for regression coefficients with practical examples.

ANOVAconfidence intervalhypothesis testing
0 likes · 9 min read
How Simple Linear Regression Predicts Outcomes: Model, Assumptions, and Evaluation
Model Perspective
Model Perspective
Nov 12, 2022 · Fundamentals

How to Perform One-Way ANOVA in Python: Theory, Example, and Code

This article explains the concept of one‑factor (one‑way) ANOVA, walks through a lamp‑life example with four manufacturing processes, derives the within‑ and between‑group sum‑of‑squares formulas, and shows how to execute the test in Python using statsmodels.

ANOVAPythonhypothesis testing
0 likes · 6 min read
How to Perform One-Way ANOVA in Python: Theory, Example, and Code
Model Perspective
Model Perspective
Jul 11, 2022 · Fundamentals

How to Perform One-Way ANOVA in Python: A Step-by-Step Guide

This article explains the concept of one‑way ANOVA, walks through a real‑world example comparing four manufacturing processes, and demonstrates how to conduct the analysis in Python using statsmodels, interpreting the resulting F‑statistic and p‑value to assess significance.

ANOVAPythonhypothesis testing
0 likes · 6 min read
How to Perform One-Way ANOVA in Python: A Step-by-Step Guide