R

See below a list and description of R workshops. Links to recordings can be found at the bottom of the page.

Introduction to R

This presentation introduces users to the fundamentals of working in R.  Topics include distinguishing between R and RStudio, understanding the user interface, and executing basic commands. Materials for Introduction to R Workshop 2022 can be downloaded here.

Plotting in R

Users learn the fundamentals of plotting, and how to utilize the function "ggplot". Worked examples and content cover syntax for ggplot, scatter plots, boxplots, fitted lines, and labeling axes and titles. Materials for the plotting in R Workshop for 2022 can be downloaded here.

Introduction to data cleaning in R

This presentation demonstrates basic skills in data cleaning in R using the tidyverse package of dplyr. A recording of the session can be watched here. The materials for this workshop can be downloaded here.

Introduction to Rmarkdown

This presentation gives a basic introduction to writing documents in Rmarkdown. Materials for the session can be downloaded here. A recording of the session can be watched here. 

lmer() and lme4

This presentation demonstrates notation and syntax related to the function lmer(), part of the lme4 package used for multilevel modeling. Familiarity with multilevel modeling and experience coding in R are strongly recommended.

LASSO

This presentation discusses the motivation and general implementation of LASSO as a variable selection technique. Familiarity with linear regression and data science, and experience coding in R, are strongly recommended.