R Packages
R Packages
Ten packages, all on CRAN, all documented, all actively maintained. Each was written while teaching at Rsquared Academy and shared in the hope that others find them useful.
The goal is software which is user friendly, light weight, well tested and well documented. Major bugs get fixed quickly; feature requests are considered but not promised.
Full descriptions and vignettes: pkgs.rsquaredacademy.com.
Regression and modelling

olsrr
Tools for building linear regression models
- Comprehensive Regression Output
- Variable Selection Procedures
- Heteroskedasticity Tests
- Collinearity Diagnostics
- Model Fit Assessment
- Measures of Influence
- Residual Diagnostics

blorr
Tools for building binary logistic regression models
- Bivariate Analysis
- Model Fit Statistics
- Model Validation
- Variable Selection
- Residual Diagnostics
- Collinearity Diagnostics
- Visualization
Descriptive and inferential statistics

descriptr
Tools for generating descriptive / summary statistics
- Data Screening
- Summary Statistics
- Frequency Tables
- Cross Tables
- Data Visualization

inferr
Tools for inferential statistics
- Binomial Test
- Test of Proportion
- t Test
- Chi Square Test
- Levene’s Test
- Test of Variance
- McNemar Test
- Cochran Q Test
- Runs Test

vistributions
Tools for visualizing probability distributions
- Binomial Distribution
- Chi Square Distribution
- Normal Distribution
- f Distribution
- t Distribution
- Includes Shiny App
Data wrangling
Utilities
| Package | What it does | Links |
|---|---|---|
| yahoofinancer | Fetch stock and index data from Yahoo! Finance | GitHub |
| standby | Save, load and manage R processes and sessions | GitHub |
Archived
nse2r fetched live data from the National Stock Exchange of India. It was archived on CRAN on 2023-08-07 at the maintainer’s request and is currently being revived, so it is no longer installable from CRAN.
Source and issue tracker: github.com/rsquaredacademy/nse2r.

