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\begin{scope}%
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\draw[] (0.9,0.9) -- (0.9,8.1) -- (0.45,8.1) -- (0.45,0.9)--cycle;%
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\draw[] (2.7,0.9) -- (2.7,8.1) -- (2.25,8.1) -- (2.25,0.9)--cycle;%
\draw[] (2.7,0.9) -- (2.25,0.9);%
\draw[] (2.7,1.9286) -- (2.25,1.9286);%
\draw[] (2.7,2.9571) -- (2.25,2.9571);%
\draw[] (2.7,3.9857) -- (2.25,3.9857);%
\draw[] (2.7,5.0143) -- (2.25,5.0143);%
\draw[] (2.7,6.0429) -- (2.25,6.0429);%
\draw[] (2.7,7.0714) -- (2.25,7.0714);%
\draw[] (2.7,8.1) -- (2.25,8.1);%
\draw[-] (2.7,0.9) node[right] {\small $0$} (2.7,1.9286) node[right] {\small $1$} (2.7,2.9571) node[right] {\small $2$} (2.7,3.9857) node[right] {\small $3$} (2.7,5.0143) node[right] {\small $4$} (2.7,6.0429) node[right] {\small $5$} (2.7,7.0714) node[right] {\small $6$} (2.7,8.1) node[right] {\small $7$};%
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\draw[] (3.6,5.4) -- (3.6,6.3);%
\draw[] (4.95,5.4) -- (4.95,6.3);%
\draw[] (6.3,5.4) -- (6.3,6.3);%
\draw[] (7.65,5.4) -- (7.65,6.3);%
\draw[] (9,5.4) -- (9,6.3);%
\draw[-] (3.6,5.4) node[below] {\small $0$} (4.95,5.4) node[below] {\small $0.25$} (6.3,5.4) node[below] {\small $0.5$} (7.65,5.4) node[below] {\small $0.75$} (9,5.4) node[below] {\small $1$};%
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\draw[] (3.6,3.6) -- (9,3.6) -- (9,2.7) -- (3.6,2.7)--cycle;%
\draw[] (3.6,3.6) -- (3.6,2.7);%
\draw[] (4.95,3.6) -- (4.95,2.7);%
\draw[] (6.3,3.6) -- (6.3,2.7);%
\draw[] (7.65,3.6) -- (7.65,2.7);%
\draw[] (9,3.6) -- (9,2.7);%
\draw[-] (3.6,3.6) node[above] {\small $0$} (4.95,3.6) node[above] {\small $0.25$} (6.3,3.6) node[above] {\small $0.5$} (7.65,3.6) node[above] {\small $0.75$} (9,3.6) node[above] {\small $1$};%
\draw[-] (0.675,0.9) node[below] {\small No value} (2.475,0.9) node[below] {\small \parbox{1.95cm}{minmax=\{0,7\}\\values=8}} (6.3,6.3) node[above] {\small dir=1, length=6, width=1} (6.3,2.7) node[below] {\small dir=1, length=6, width=-1};%
\end{scope}%
\end{tikzpicture}%