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组图的中心标题

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组图的中心标题

如何将标题从移动groupplot到中心： 在此处输入图片描述

这是我的代码：

\documentclass[11pt]{book}
\usepackage[top=3cm,bottom=3cm,left=3.2cm,right=3.2cm,headsep=10pt,a4paper]{geometry}
\usepackage{graphicx}
\usepackage{tikz}
\usepackage{float}
\usepackage{pgfplots,pgfplotstable, booktabs}
\usetikzlibrary{pgfplots.groupplots, matrix}
\pgfplotsset{compat=1.10, title/.append style={align =center}}

\pgfplotsset{minor grid style={dashed,red}}
\pgfplotsset{major grid style={dotted,green!50!black}}
\begin{filecontents*}{jobname}
1 0.055 0.348
2 0.123 0.565
3 0.110 0.304
4 0.068 0.609
5 0.137 0.435
6 0.096 0.304
7 0.110 0.261
8 0.082 0.522
9 0.123 0.435
10 0.123 0.435
100 0.192 0.217
\end{filecontents*}

\begin{document}

\begin{figure}[H]
\centering
\begin{tikzpicture}
\begin{groupplot}[group style={
  group size=2 by 2,
  vertical sep=1.7cm,
  horizontal sep = 1cm,
  ylabels at=edge left,group name=ape},
  width=8.2cm,
  height=5.0cm,
  try min ticks=5,
  tick label style={font=\footnotesize},
  y tick label style={
                /pgf/number format/.cd,
                fixed,
                fixed zerofill,
                precision=2,
                /tikz/.cd}
  ]
\nextgroupplot[align =center, title={\hspace*{1cm}\textbf{Cost Sensitivity Plots}}, grid=both, every major grid/.style={gray, opacity=0.5},
smooth,
xlabel = (a) Bagging--J8,xmin=0,ymax=0.8,ymin=0.00]

\addplot [line width=1.6pt,
            mark=none,
            blue,
            mark options={scale=.65}]%
            table[x index=0,y index=1,col sep=space]
            {jobname};\label{plots:plot1}

\addplot [line width=1.6pt,
            mark=none,
            red,
            mark options={scale=.65}]%
            table[x index=0,y index=2,col sep=space] {jobname};\label{plots:plot2}
\coordinate (top) at (rel axis cs:0,1);

\nextgroupplot[grid=both, every major grid/.style={gray, opacity=0.5},smooth,xlabel = (c) Bagging--Decision Stump,xmin=0, ymax=0.8]

\addplot [line width=1.6pt,
            mark=none,
            blue,
            mark options={scale=.65}]%
            table[x index=0,y index=1,col sep=space]
            {jobname};

\addplot [line width=1.6pt,
            mark=none,
            red,
            mark options={scale=.65}]%
            table[x index=0,y index=2,col sep=space]
            {jobname};

\nextgroupplot[grid=both, every major grid/.style={gray, opacity=0.5},smooth,xlabel = (e) AdaBoostM1--J8,xmin=0,ymax=0.8]
\addplot [line width=1.6pt,
            mark=none,
            blue,
            mark options={scale=.65}]%
            table[x index=0,y index=1,col sep=space]
            {jobname};

\addplot [line width=1.6pt,
            mark=none,
            red,
            mark options={scale=.65}]%
            table[x index=0,y index=2,col sep=space]
            {jobname};

\nextgroupplot[grid=both, every major grid/.style={gray, opacity=0.5},
smooth,
xlabel = (g) AdaBoostM1--Decision Stump,xmin=0,ymin=0,ymax=0.8]
\addplot  [legend pos=north west,
            line width=1.6pt,
            mark=none,
            blue,
            mark options={scale=.65}]%
            table[x index=0,y index=1,col sep=space]
            {jobname};

\addplot [line width=1.6pt,
            mark=none,
            red,
            mark options={scale=.65}]%
            table[x index=0,y index=2,col sep=space]
            {jobname};

\coordinate (bot) at (rel axis cs:1,0);
\end{groupplot}

\foreach \row in {1,2}
  \path (ape c1r\row.south east) --node[below=1cm]{\textbf{Ratio}} (ape c2r\row.south west);
  
\path (top-|current bounding box.west)--
  node[anchor=south,rotate=90] {\large{\bf{Misclassification Rate}}}
  (bot-|current bounding box.west);
% legend
\path (top|-current bounding box.north)--
  coordinate(legendpos)
  (bot|-current bounding box.north);
\matrix[
matrix of nodes,
anchor=south,
draw,
inner sep=0.2em,
draw
  ]at([yshift=1ex]legendpos)
  {
\ref{plots:plot1}& Type 1 &[5pt]
\ref{plots:plot2}& Type 2 &[5pt]\\};
\end{tikzpicture}
\caption[FIT and TEST Data for various Classifier and Meta Learning Schemes]{FIT and TEST Data for various Classifier and Meta Learning Schemes.}\label{FIT_TEST}
\end{figure}

\end{document}

答案1

您可以对标题使用与 相同的技巧\textbf{Ratio}。但是，我应该指出， tikzpicture 不适合页边距（showframe）。

\documentclass[11pt]{book}
\usepackage[top=3cm,bottom=3cm,left=3.2cm,right=3.2cm,headsep=10pt,a4paper]{geometry}
\usepackage{graphicx}
\usepackage{tikz}
\usepackage{float}
\usepackage{pgfplots,pgfplotstable, booktabs}
\usetikzlibrary{pgfplots.groupplots, matrix}
\pgfplotsset{compat=1.10, title/.append style={align =center}}

\pgfplotsset{minor grid style={dashed,red}}
\pgfplotsset{major grid style={dotted,green!50!black}}
\begin{filecontents*}{jobname}
1 0.055 0.348
2 0.123 0.565
3 0.110 0.304
4 0.068 0.609
5 0.137 0.435
6 0.096 0.304
7 0.110 0.261
8 0.082 0.522
9 0.123 0.435
10 0.123 0.435
100 0.192 0.217
\end{filecontents*}

\begin{document}

\begin{figure}% friends don't let frineds use [H]
\centering
\begin{tikzpicture}
\begin{groupplot}[group style={
  group size=2 by 2,
  vertical sep=1.7cm,
  horizontal sep = 1cm,
  ylabels at=edge left,group name=ape},
  width=8.2cm,
  height=5.0cm,
  try min ticks=5,
  tick label style={font=\footnotesize},
  y tick label style={
                /pgf/number format/.cd,
                fixed,
                fixed zerofill,
                precision=2,
                /tikz/.cd}
  ]
\nextgroupplot[align =center, grid=both, every major grid/.style={gray, opacity=0.5},
xlabel = (a) Bagging--J8,xmin=0,ymax=0.8,ymin=0.00]

\addplot [line width=1.6pt,
            mark=none,
            blue,
            mark options={scale=.65}]%
            table[x index=0,y index=1,col sep=space]
            {jobname};\label{plots:plot1}

\addplot [line width=1.6pt,
            mark=none,
            red,
            mark options={scale=.65}]%
            table[x index=0,y index=2,col sep=space] {jobname};\label{plots:plot2}
\coordinate (top) at (rel axis cs:0,1);

\nextgroupplot[grid=both, every major grid/.style={gray, opacity=0.5},xlabel = (c) Bagging--Decision Stump,xmin=0, ymax=0.8]

\addplot [line width=1.6pt,
            mark=none,
            blue,
            mark options={scale=.65}]%
            table[x index=0,y index=1,col sep=space]
            {jobname};

\addplot [line width=1.6pt,
            mark=none,
            red,
            mark options={scale=.65}]%
            table[x index=0,y index=2,col sep=space]
            {jobname};

\nextgroupplot[grid=both, every major grid/.style={gray, opacity=0.5},xlabel = (e) AdaBoostM1--J8,xmin=0,ymax=0.8]
\addplot [line width=1.6pt,
            mark=none,
            blue,
            mark options={scale=.65}]%
            table[x index=0,y index=1,col sep=space]
            {jobname};

\addplot [line width=1.6pt,
            mark=none,
            red,
            mark options={scale=.65}]%
            table[x index=0,y index=2,col sep=space]
            {jobname};

\nextgroupplot[grid=both, every major grid/.style={gray, opacity=0.5},
xlabel = (g) AdaBoostM1--Decision Stump,xmin=0,ymin=0,ymax=0.8]
\addplot  [legend pos=north west,
            line width=1.6pt,
            mark=none,
            blue,
            mark options={scale=.65}]%
            table[x index=0,y index=1,col sep=space]
            {jobname};

\addplot [line width=1.6pt,
            mark=none,
            red,
            mark options={scale=.65}]%
            table[x index=0,y index=2,col sep=space]
            {jobname};

\coordinate (bot) at (rel axis cs:1,0);
\end{groupplot}


\path (ape c1r1.north east) --node[above]{\textbf{Cost Senditivity Plot}} (ape c2r1.north west);

\foreach \row in {1,2}
  \path (ape c1r\row.south east) --node[below=1cm]{\textbf{Ratio}} (ape c2r\row.south west);
  
\path (top-|current bounding box.west)--
  node[anchor=south,rotate=90] {\large{\bf{Misclassification Rate}}}
  (bot-|current bounding box.west);
% legend
\path (top|-current bounding box.north)--
  coordinate(legendpos)
  (bot|-current bounding box.north);
\matrix[
matrix of nodes,
anchor=south,
draw,
inner sep=0.2em,
draw
  ]at([yshift=1ex]legendpos)
  {
\ref{plots:plot1}& Type 1 &[5pt]
\ref{plots:plot2}& Type 2 &[5pt]\\};
\end{tikzpicture}
\caption[FIT and TEST Data for various Classifier and Meta Learning Schemes]{FIT and TEST Data for various Classifier and Meta Learning Schemes.}\label{FIT_TEST}
\end{figure}

\end{document}

演示

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