friendly

matlib

Matrix Functions for Teaching and Learning Linear Algebra and Multivariate Statistics

HistData

Data Sets from the History of Statistics and Data Visualization

vcdExtra

Extensions and additions to vcd: Visualizing Categorical Data

candisc

Visualizing Generalized Canonical Discriminant and Canonical Correlation Analysis

statquotes

An R package for quotes on statistics, data visualization and science

Vis-MLM-book

Github repo for my in-progress book, "Visualizing Multivariate Data and Models in R" to be published by Taylor & Francis (CRC Press), 2026

6135

Repo for my course PSY6135: Psychology of Data Visualization

ggbiplot

A ggplot2 based biplot for principal components-like methods

heplots

Visualizing Hypothesis Tests in Multivariate Linear Models, http://friendly.github.io/heplots/

nestedLogit

Nested Dichotomy Logistic Regression Models

ggsprings

ggplot2 extension to draw springs

genridge

Generalized Ridge Trace Plots for Ridge Regression

twoway

Analysis of Two-Way Tables a la Tukey

WordPools

Word pools used in studies of learning and memory

ggCheysson

Styles of Emile Cheysson for ggplot2

Guerry

Maps, data and methods related to Guerry (1833) "Moral Statistics of France"

mvinfluence

Influence Measures and Diagnostic Plots for Multivariate Linear Models

uncertainty-examples

Uncertainty visualization examples

VisCollin

Visualizing Collinearity Diagnostics

AI-UNC-graph

An article, "What Does AI Understand About Graphs?"

friendly

An overview of my GitHub projects, books, courses, ...

friendly.github.io

Repo for my github landing page

friendly.r-universe.dev

FriendsDontLetFriends

Friends don't let friends make certain types of data visualization - What are they and why are they bad.

gellipsoid

Generalized ellipsoids

myutil

My utility functions for R at startup

ordr

manage ordinations and render biplots in a tidyverse workflow

spida2

New version of the 'spida' package developed for the Summer Programme in Data Analysis at York University 2000 to 2012

tourr

A implementation of tour algorithms in R

TrumpLies

Trump Lies Database