Powell Miscellaneous Functions for Teaching and Learning Statistics

Miscellaneous functions useful for teaching statistics as well as actually practicing the art. They typically are not new methods but rather wrappers around either base R or other packages.

Overview

A package that includes functions that I find useful for teaching statistics as well as actually practicing the art. They typically are not “new” methods but rather wrappers around either base R or tidyverse packages. Currently contains the following major user oriented functions:

Plot2WayANOVA which as the name implies conducts a 2 way ANOVA and plots the results using ggplot2
PlotXTabs2 which wraps around ggplot2 to provide Bivariate bar charts for categorical and ordinal data.
newggslopegraph which creates a Tufte“esque” slopegraph using ggplot2
chaid_table provides tabular summary of CHAID partykit object
cross2_var_vectors a helper function to build lists of “crossed” variables
SeeDist which wraps around ggplot2 to provide visualizations of univariate data.
OurConf is a simulation function that helps you learn about confidence intervals

Installation

# Install from CRAN
install.packages("CGPfunctions")

# Or the development version from GitHub
# install.packages("devtools")
devtools::install_github("ibecav/CGPfunctions", 
                         build_vignettes = TRUE,
                         upgrade = "ask")