Chunk #27 — 2. Methods and Materials — 2.4. Statistical Methodology — 2.4.1. Developmental Models — Phenotypic trajectory modeling
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The above is the model which represents the following weighted least squares minimization problem to be solved for the βs : ∑i,jWh(ti,j-tk)(yi,j-[β0,0,k+∑Xi,j,nβ0,n,k+∑Xi,j,mβ1,m,k∗(ti,j-tk)])2