4 Pedigrees and Relationship Matrices

Learning Objectives

By the end of this chapter, you will be able to:

Store, sort, and renumber a pedigree correctly
Build A by the tabular method by hand
Compute inbreeding coefficients and interpret the diagonal of A
Build A⁻¹ directly by Henderson’s rules, with and without inbreeding
Reproduce both in R

Assumes Ch 1.

Chapter in progress

This chapter has not been written yet. The objectives above are the contract it will be written against — they are taken from CHAPTERS.md, which is the outline for the whole book.

Purpose. A and A⁻¹ — the object that makes the animal model work.

---
title: "Pedigrees and Relationship Matrices"
---

::: {.callout-note icon=false}
## Learning Objectives

By the end of this chapter, you will be able to:

1. **Store,** sort, and renumber a pedigree correctly
2. **Build** **A** by the tabular method by hand
3. **Compute** inbreeding coefficients and interpret the diagonal of **A**
4. **Build** **A⁻¹** directly by Henderson's rules, with and without inbreeding
5. **Reproduce** both in R
:::

*Assumes Ch 1.*

::: {.callout-warning}
## Chapter in progress

This chapter has not been written yet. The objectives above are the contract it will be written
against — they are taken from `CHAPTERS.md`, which is the outline for the whole book.

**Purpose.** **A** and **A⁻¹** — the object that makes the animal model work.
:::