+++ /dev/null
-\documentclass[12pt]{standalone}
-
-\usepackage{ucs}
-\usepackage[utf8x]{inputenc}
-
-\usepackage[T1]{fontenc}
-\usepackage{textcomp}
-\renewcommand{\rmdefault}{ugm}
-\renewcommand{\sfdefault}{phv}
-\usepackage[garamond]{mathdesign}
-\usepackage{tikz}
-\usetikzlibrary{positioning, shapes, arrows, shadows}
-
-\begin{document}
-
-\tikzset{>=latex}
-\begin{tikzpicture}[
- observed/.style={circle, draw},
- partly observed/.style 2 args={draw, fill=#2, path picture={
- \fill[#1, sharp corners] (path picture bounding box.south west) -|
- (path picture bounding box.north east) -- cycle;},
- circle},
- unobserved/.style={draw, circle, fill=gray!40}
- ]
-
- \node[observed] (y) {Y};
-% \node[observed,above=of y, xshift=1cm] (r) {R};
- \node[partly observed={white}{gray!40}, above = of y] (x) {X};
- \node[observed, left=of x] (w) {W};
- \node[unobserved, above=of w, xshift=1cm] (k) {K};
- \node[unobserved, right=of k] (u) {U};
-
-% \draw[->] (r) -- (y);
-% \draw[->] (r) -- (x);
- \draw[->] (x) -- (y);
- \draw[->] (x) -- (w);
- \draw[->] (x) -- (k);
- \draw[->] (k) -- (w);
- \draw[->] (u) to [out=270,in=30] (y);
- \draw[->] (u) -- (k);
-
-
- \matrix [draw, below, yshift=-0.2cm, inner sep=0.6em, outer sep=0em, nodes={align=center, anchor=center}] at (current bounding box.south){
- \node[observed,label=right:observed] {}; \\
- \node[unobserved,label=right:unobserved]{}; \\
- };
-
-
-\end{tikzpicture}
-\end{document}
-