#1 example - BayesNet

BayesNet/BCPF.tex

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+\documentclass[border=0.1cm]{standalone}
+\usepackage[utf8]{inputenc}
+
+\usepackage{tikz}
+\usepackage{amsfonts}
+\usepackage{amsmath,amssymb}
+\usepackage{systeme,mathtools}
+\usetikzlibrary{positioning,arrows.meta,quotes}
+\usetikzlibrary{shapes,snakes}
+\usetikzlibrary{bayesnet}
+\tikzset{>=latex}
+\tikzstyle{plate caption} = [caption, node distance=0, inner sep=0pt,
+below left=5pt and 0pt of #1.south]
+
+\begin{document}
+\begin{tikzpicture}
+    \node [obs] (x) at (0,0) {\large $x_{\boldsymbol{i}}$};
+    \node [circle,draw=black,fill=white,inner sep=0pt,minimum size=0.6cm] (u1) at (-1.2,1.6) { $\boldsymbol{u}_{i_1}^{(1)}$};
+    \node [circle,draw=black,fill=white,inner sep=0pt,minimum size=0.6cm] (u3) at (1.2,1.6) { $\boldsymbol{u}_{i_d}^{(d)}$};
+    \node [circle,draw=black,fill=white,inner sep=0pt,minimum size=0.65cm] (lambda) at (0,3.0) {\large $\boldsymbol{\lambda}$};
+
+	\node[mark size=1pt,color=black] at (0,1.6) {\pgfuseplotmark{*}};
+	\node[mark size=1pt,color=black] at (-0.2,1.6) {\pgfuseplotmark{*}};
+	\node[mark size=1pt,color=black] at (0.2,1.6) {\pgfuseplotmark{*}};
+
+    \node [text width=0.5cm] (c0) at (0,4) {$\alpha,\beta$};
+    \node [text width=0.5cm] (a0) at (2.5,2.6) {$\alpha,\beta$};
+    \node [circle,draw=black,fill=white,inner sep=0pt,minimum size=0.65cm] (tau_epsilon) at (2.5,1.6) {\large $\tau_{\epsilon}$};
+
+    \path [draw,->] (u1) edge (x);
+    \path [draw,->] (u3) edge (x);
+    \path [draw,->] (lambda) edge (u1);
+    \path [draw,->] (lambda) edge (u3);
+
+    \path [draw,->] (c0) edge (lambda);
+    \path [draw,->] (tau_epsilon) edge (x);
+    \path [draw,->] (a0) edge (tau_epsilon);
+    \plate [color=red] {part1} {(x)(u1)} { };
+    \plate [color=blue] {part3} {(x)(u3)(part1.north east)} { };
+
+    \node [text width=2cm] at (-0.6,-0.5) {\large $n_1$};
+    \node [text width=2cm] at (2,-0.5) {\large $n_d$};
+
+\end{tikzpicture}
+\end{document}