Chapter 5 Troubleshooting

5.0.1 What does this error message mean?

5.0.2 Why do my predictions look bad?

5.0.3 How do I make a reproducible example?

Please provide:

• A link to a CSV with the data,

• The minimal amount of code needed to reproduce the problem, after refreshing the session with Session --> Restart R and clearing objects from the environment with rm(list = ls()),

• The output of sessionInfo().