Assignment 3

Week 3 Practice - Dimension Reduction using Tidymodels
Author
Affiliation

Eleana Cabello

Department of Microbiology and Immunology, OUHS

Published

July 18, 2025

Overview

Due date: 07/25/25 at 11:59pm

This week we will use a different package called LearnR to gain practice in dimension reduction using tidymodels.

The lesson will cover using tidymodels for:

  • PCA Dimension reduction
  • UMAP Dimension reduction

Install the Tutorial Course Setup

  1. The course is available on GitHub.

  2. Open RStudio.

  3. Install devtools using the command below on the R Console

    install.packages("devtools")

  4. Install the github lesson using the command below on the R Console

    devtools::install_github("tidymodels/learntidymodels")

Tip

  • You will be asked to do a lot of updates. Not all of these are necessary. Try selecting no to the first one (option 3). Then it will ask you again with a shorter list then you can say All (option 1).

  • A lot of text with fly by during the installation of the packages, that is ok and expected.

Run the Tutorial Course Setup

  1. Run the tutorial by running the command below on the R Console. You may be asked to install an additional package say “yes”.

    learnr::run_tutorial("pca_recipes", package = "learntidymodels")

Important

  • It is best to complete the tutorial in one setting because each step builds on the other.

  • Since you submitting the final plot and not through google forms, you can comeback and do the tutorial across multiple settings.

Submission

  1. Submit a screenshot of the final UMAP plot to canvas for homework #3.
Note

If you have problems installing or deploying the tutorial please contact your instructors as soon as possible.