PCM1 Data And Tree Preparation¶
The first half of PCM1 asks a simple question: is the study state good enough to support later comparative claims?
What This Part Covers¶
- loading the primate table into a governed shape
- making type repair and missing-data decisions explicit
- importing and checking the trimmed tree
- proving that tree tips and trait rows correspond before model fitting
Why This Matters¶
Later signal results are only meaningful if the earlier joins, exclusions, and tree adjustments are already visible. This page is therefore not just about cleaning. It is about making the prepared study state reviewable.
What This Part Answers¶
- Are the primate traits in one governed shape before model work starts?
- Does the trimmed tree still match the trait table?
- Are missing-value and exclusion decisions visible before any signal claim is made?