these-recap-hebdo/knowledge_base/figs/projets-phylo/dag-simple.tex
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Working on phylogeny
2026-05-06 17:11:25 +02:00

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\documentclass{standalone}
\usepackage{tikz}
\usetikzlibrary{positioning,shapes.arrows, arrows.meta,shapes.geometric}
\begin{document}
\begin{tikzpicture}
\tikzset{
every path/.append style = {
arrows = ->,
> = stealth,
},
every node/.append style = {
shape = circle,
draw = black,
minimum size=3em
},
latent/.style = {
fill = lightgray
},
prior/.style = {
fill = red
},
moral/.style = {
dashed,
> = {}, % remove arrow tip
arrows = -, % ensure no arrows
}
}
\node (y) {$Y$};
\node[latent] (z) [above left = of y] {$Z$};
\node[latent] (w) [above right = of y] {$W$};
\node[latent] (P) [above = of z] {$P$};
\node[prior] (sigma2) [above = of P] {$\sigma^2$};
\node[prior] (rho) [above = of w] {$\rho_{1:R}$};
\node[prior] (alpha) [below = of y] {$\pmb{\alpha}$};
\path (z) edge (y);
\path (w) edge (y);
\path (rho) edge (w);
\path (alpha) edge (y);
\path (P) edge (z);
\path (sigma2) edge (P);
% moral
\path[moral] (z) edge (alpha);
\path[moral] (w) edge (alpha);
\path[moral] (z) edge (w);
\end{tikzpicture}
\end{document}