figSIRModel1.tex 629 Bytes
 Chris Jewell committed Jan 16, 2019 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 % TikZ SIR model picture % % Requries postitioning,arrows,fit,calc,backgrounds TikZ libraries \begin{hyphenrules}{nohyphenation} \begin{tikzpicture}[ auto, node distance=48pt, box/.style={ draw=black, anchor=center, align=center, minimum height=36pt, minimum width=36pt}] \node[box, fill=ForestGreen] (S) {$S(t)$}; \node[box, fill=Red, right=of S] (I) {$I(t)$}; \node[box, fill=Gray, right=of I] (R) {$R(t)$}; \draw[->,very thick] (S) to node (SI) {$\beta I(t)S(t)$} (I); \draw[->,very thick] (I) to node (IR) {$\gamma I(t)$} (R); \draw[-*,dashed] (I) to [out=240,in=270,looseness=2] (SI); \end{tikzpicture} \end{hyphenrules}