Example 9 for WOMBAT

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This example – using monthly weight records on beef calves – illustrates more complicated random regression analyses than Example 3, namely a model with an additional random effect, fitting quadratic B-splines (rather than Legendre polynomials) as basis functions, and how to obtain reduced rank estimates.

• A : full rank analysis

• A1: like A, but supplying basis functions as user defined

• B : reduced rank analysis; same rank for all effects

• C : reduced rank analysis; different ranks

• D : full rank analysis for a model with correlated direct and maternal genetic effects (using Legendre polynomials as basis functions)