Miquel De Cáceres, Anthony Sturbois, Nicolas Djeghri, Javier de la Casa

This repository contains a course devoted to learn the Ecological Trajectory Analysis (ETA) framework using the ecotraj package. The course is presented as a set of Quarto markdown (*.qmd) files, which can be easily deployed into html format.

Course sessions are updated to the most recent course edition and package versions.

The course slides are made using Quarto. This publishing system should be installed in order to recreate and modify course slides.

Code for course sessions is in sessions/*.qmd files. Printed sessions/pdf/*.pdf files can also be found.

1. Introduction to Ecological Trajectory Analysis
2. Exploring the potential of ETA on different multivariate spaces
3. Introduction to Cyclical Ecological Trajectory Analysis
4. Application: Elementome Trajectory Analysis

These are required to recreate slide presentations from *.qmd files.

• sessions/resources/scss contains style sheets that customize slide appearance.
• sessions/resources/img contains figures in PNG, SVG or JPG format used in slides.

Exercises are included in a separate folder.

• exercises/guidelines/Exercise_*.Rmd are guidelines for exercises
• exercises/solutions/Exercise_*_solution.Rmd are solutions for exercises
• exercises/StudentRdata/*.rds are data sets required for exercises
• exercises/R/*.R are files to prepare data for exercises

The proposed exercises are the following:

Three different course editions have been held so far:

• Dates: 13th May 2025
• Location: Technopole Brest-Iroise (Plouzané, France)
• Organizer: NEST hub
• Lecturers: Miquel De Cáceres, Anthony Sturbois, Nicolas Djeghri

• Dates: 24-25th Feb 2026
• Location: UAB (Cerdanyola del Vallès, Spain)
• Organizer: CREAF
• Lecturers: Miquel De Cáceres, Javier de la Casa