[r] What is the difference between Multiple R-squared and Adjusted R-squared in a single-variate least squares regression?

The R-squared is not dependent on the number of variables in the model. The adjusted R-squared is.

The adjusted R-squared adds a penalty for adding variables to the model that are uncorrelated with the variable your trying to explain. You can use it to test if a variable is relevant to the thing your trying to explain.

Adjusted R-squared is R-squared with some divisions added to make it dependent on the number of variables in the model.

Examples related to r

How to get AIC from Conway–Maxwell-Poisson regression via COM-poisson package in R? R : how to simply repeat a command? session not created: This version of ChromeDriver only supports Chrome version 74 error with ChromeDriver Chrome using Selenium How to show code but hide output in RMarkdown? remove kernel on jupyter notebook Function to calculate R2 (R-squared) in R Center Plot title in ggplot2 R ggplot2: stat_count() must not be used with a y aesthetic error in Bar graph R multiple conditions in if statement What does "The following object is masked from 'package:xxx'" mean?

Examples related to statistics

Function to calculate R2 (R-squared) in R pandas: find percentile stats of a given column What exactly does numpy.exp() do? Find p-value (significance) in scikit-learn LinearRegression How to plot ROC curve in Python Pandas - Compute z-score for all columns Calculating percentile of dataset column How to normalize an array in NumPy to a unit vector? How to find row number of a value in R code np.mean() vs np.average() in Python NumPy?

Examples related to regression

how to use the Box-Cox power transformation in R Find p-value (significance) in scikit-learn LinearRegression Run an OLS regression with Pandas Data Frame fitting data with numpy Adding a regression line on a ggplot Quadratic and cubic regression in Excel Extract regression coefficient values How to force R to use a specified factor level as reference in a regression? What is the difference between Multiple R-squared and Adjusted R-squared in a single-variate least squares regression?