Day 1 Challenges

RAdelaide 2025

Author
Affiliation

Dr Stevie Pederson

Black Ochre Data Labs
The Kids Research Institute Australia

Published

July 8, 2025

Some Initial Challenges

  1. Load the Guinea Pigs dataset (data/pigs.csv)
    • Contains odontoblast (tooth) length in guinea pigs
    • Vitamin C via direct supplement or OJ
    • Three doses (Low, Med, High)
  2. Create a boxplot of length separating groups by dose & supp
  3. Find the mean odontoblast length for each dose & supplement method
  4. Include the standard deviation alongside the mean
  5. Create a barplot showing mean length with error bars

(We’ll learn how to set the dose categories in order tomorrow)

Loading and Manipulating Data

  1. Find which sheets are in the file “data/NERP_Fauna_Survey_Protocols_Field_Trial_2015_Data_v1.xlsx” 1

  2. Load the main data sheet from this file using read_excel() from readxl

  3. How would you compare measurements for the species across different sites

    • Try using tables
    • How can you visualise this?

Footnotes

  1. Obtained from https://portal.tern.org.au/results?topicTerm=surveillance↩︎