我尝试使用包tikz和在一个图中绘制八个子图pgfplots。但是，当我编译文档时，我得到的图不在页面中央，即左边距很大，但右边距不存在。
有没有办法将以下图表优雅地放在页面的中心？
以下是我使用的代码：
\documentclass{article}
\usepackage{tikz}
\usetikzlibrary{pgfplots.groupplots}
\usepackage{pgfplots}
\usetikzlibrary{matrix}
\usepgfplotslibrary{colorbrewer}
\pgfplotsset{cycle list/Paired}
\pgfplotsset{compat=newest}
\begin{document}
\begin{center}
\begin{tikzpicture}
\begin{groupplot}[
group style={group size = 2 by 4, group name=myplot, xticklabels at=edge bottom},
every axis plot post/.style={/pgf/number format/fixed},
%every axis plot/.append style={fill,fill opacity=0.5},
ymin=0,
%grid=both,
%every major grid/.style={gray, opacity=0.5},
axis on top,
ybar=1pt,
xtick=data,
enlarge x limits=0.2,
every axis plot/.append style={fill},
cycle list name = Paired,
tick label style={font=\footnotesize},
symbolic x coords={600, 700, 800, 900, 1000, 3000, 9000, 27000}
]
\nextgroupplot[bar width=5pt, ymax=1, ylabel={$p^\circ=1$}]
\addplot coordinates {(600,1.0000) (700,1.0000) (800,1.0000) (900,1.0000)};\label{SBC}
\addplot coordinates {(600,0.9956) (700,0.9978) (800,0.9978) (900,0.9989)};\label{FPE}
\addplot coordinates {(600,0.9956) (700,0.9967) (800,0.9967) (900,1.0000)};\label{RNML}
\addplot coordinates {(600,0.9956) (700,0.9978) (800,0.9978) (900,0.9989)};\label{AIC}
\addplot coordinates {(600,0.9967) (700,0.9989) (800,0.9978) (900,1.0000)};\label{AICc}
\addplot coordinates {(600,1.0000) (700,1.0000) (800,1.0000) (900,1.0000)};\label{KIC}
\addplot coordinates {(600,1.0000) (700,1.0000) (800,1.0000) (900,1.0000)};\label{KICc}
\coordinate (top) at (rel axis cs:0,1);
\nextgroupplot[bar width=5pt, ymax=1]
\addplot coordinates {(600,1.0000) (700,1.0000) (800,1.0000) (900,1.0000)};
\addplot coordinates {(600,0.9989) (700,0.9978) (800,0.9978) (900,1.0000)};
\addplot coordinates {(600,1.0000) (700,1.0000) (800,1.0000) (900,1.0000)};
\addplot coordinates {(600,0.9989) (700,0.9978) (800,0.9978) (900,1.0000)};
\addplot coordinates {(600,0.9989) (700,0.9978) (800,0.9978) (900,1.0000)};
\addplot coordinates {(600,1.0000) (700,1.0000) (800,1.0000) (900,1.0000)};
\addplot coordinates {(600,1.0000) (700,1.0000) (800,1.0000) (900,1.0000)};
\nextgroupplot[bar width=5pt, ymax=1, ylabel={$p^\circ=5$}]
\addplot coordinates {(600,0) (700,0) (800,0) (900,0)};
\addplot coordinates {(600,0.7789) (700,0.8944) (800,0.9533) (900,0.9844)};
\addplot coordinates {(600,0.7289) (700,0.8000) (800,0.8356) (900,0.8756)};
\addplot coordinates {(600,0.7789) (700,0.8933) (800,0.9533) (900,0.9844)};
\addplot coordinates {(600,0.6433) (700,0.8267) (800,0.9167) (900,0.9700)};
\addplot coordinates {(600,0.0944) (700,0.1967) (800,0.3267) (900,0.4522)};
\addplot coordinates {(600,0.0622) (700,0.1522) (800,0.2733) (900,0.3978)};
%\coordinate (top) at (rel axis cs:0,1);
\nextgroupplot[bar width=5pt, ymax=1]
\addplot coordinates {(1000,0) (3000,0.3811) (9000,1) (27000,1)};
\addplot coordinates {(1000,0.9933) (3000,0.9989) (9000,0.9967) (27000,0.9967)};
\addplot coordinates {(1000,0.9033) (3000,0.9989) (9000,1) (27000,1)};
\addplot coordinates {(1000,0.9933) (3000,0.9989) (9000,0.9967) (27000,0.9967)};
\addplot coordinates {(1000,0.9944) (3000,0.9989) (9000,0.9978) (27000,0.9967)};
\addplot coordinates {(1000,0.5944) (3000,1) (9000,1) (27000,1)};
\addplot coordinates {(1000,0.5333) (3000,1) (9000,1) (27000,1)};
\nextgroupplot[bar width=5pt, ylabel={$p^\circ=10$}]
\addplot coordinates {(600,0) (700,0) (800,0) (900,0)};
\addplot coordinates {(600,0.0322) (700,0.1011) (800,0.1700) (900,0.2600)};
\addplot coordinates {(600,0.3078) (700,0.3978) (800,0.4856) (900,0.5478)};
\addplot coordinates {(600,0.0333) (700,0.1033) (800,0.1711) (900,0.2633)};
\addplot coordinates {(600,0.0011) (700,0.0211) (800,0.0689) (900,0.1333)};
\addplot coordinates {(600,0) (700,0) (800,0) (900,0)};
\addplot coordinates {(600,0) (700,0) (800,0) (900,0)};
\nextgroupplot[bar width=5pt, ymax=1]
\addplot coordinates {(1000,0) (3000,0) (9000,0.3933) (27000,1.0000)};
\addplot coordinates {(1000,0.3367) (3000,0.9967) (9000,0.9967) (27000,0.9944)};
\addplot coordinates {(1000,0.6111) (3000,0.9444) (9000,0.9978) (27000,1.0000)};
\addplot coordinates {(1000,0.3367) (3000,0.9967) (9000,0.9967) (27000,0.9944)};
\addplot coordinates {(1000,0.2333) (3000,0.9978) (9000,0.9978) (27000,0.9944)};
\addplot coordinates {(1000,0.0011) (3000,0.8011) (9000,1.0000) (27000,1.0000)};
\addplot coordinates {(1000,0) (3000,0.7733) (9000,1.0000) (27000,1.0000)};
\nextgroupplot[bar width=5pt, ylabel={$p^\circ=15$}, xlabel={Sample size}]
\addplot coordinates {(600,0) (700,0) (800,0) (900,0)};
\addplot coordinates {(600,0) (700,0) (800,0) (900,0)};
\addplot coordinates {(600,0.0167) (700,0.0367) (800,0.0678) (900,0.1044)};
\addplot coordinates {(600,0) (700,0) (800,0) (900,0)};
\addplot coordinates {(600,0) (700,0) (800,0) (900,0)};
\addplot coordinates {(600,0) (700,0) (800,0) (900,0)};
\addplot coordinates {(600,0) (700,0) (800,0) (900,0)};
\nextgroupplot[bar width=5pt, ymax=1, xlabel={Sample size (logarithmic scale)}]
\addplot coordinates {(1000,0) (3000,0) (9000,0) (27000,0.8444)};
\addplot coordinates {(1000,0.0033) (3000,0.8600) (9000,0.9967) (27000,0.9956)};
\addplot coordinates {(1000,0.1456) (3000,0.7944) (9000,0.9856) (27000,1.0000)};
\addplot coordinates {(1000,0.0044) (3000,0.8611) (9000,0.9967) (27000,0.9956)};
\addplot coordinates {(1000,0) (3000,0.7900) (9000,0.9989) (27000,0.9956)};
\addplot coordinates {(1000,0) (3000,0.1378) (9000,1.0000) (27000,1.0000)};
\addplot coordinates {(1000,0) (3000,0.1089) (9000,1.0000) (27000,1.0000)};
\coordinate (bot) at (rel axis cs:1,0);
\end{groupplot}
\path (top-|current bounding box.west)--node[anchor=south,rotate=90] {Empirical prob. of correctly selecting the order} (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{SBC}&SBC&[5pt]
\ref{FPE}&FPE&[5pt]
\ref{RNML}&RNML&[5pt]
\ref{AIC}&AIC&[5pt]
\ref{AICc}&$\mathrm{AIC_{c}}$&[5pt]
\ref{KIC}&KIC&[5pt]
\ref{KICc}&$\mathrm{KIC_{c}}$&\\};
\end{tikzpicture}
\end{center}
\end{document}
答案1
原则上，您可以通过使用 4 个值来实现这一点。有关更多详细信息，请参阅代码中的注释。
% used PGFPlots v1.15
\documentclass{article}
\usepackage{tikzpagenodes} % <-- for debugging only
\usepackage{pgfplots}
\usetikzlibrary{
matrix,
pgfplots.colorbrewer,
pgfplots.groupplots,
}
\pgfplotsset{
compat=1.3,
cycle list/Paired,
}
\begin{document}
%
% -----------------------------------------------------------------------------
% for debugging purposes only
\begin{tikzpicture}[remember picture,overlay]
\fill [red!10]
(current page text area.north west)
rectangle
(current page text area.south east);
\end{tikzpicture}%
% -----------------------------------------------------------------------------
%
\begin{center}
\begin{tikzpicture}
\begin{groupplot}[
group style={
group size = 2 by 4,
group name=myplot,
xticklabels at=edge bottom,
% ---------------------------------------------------------------------
% change these 4 values so that everything fits to the page and
% doesn't overlap
vertical sep=5mm, % <-- added
},
/pgf/number format/fixed,
width=0.45\textwidth, % <-- added
ybar=0.5pt, % <-- changed value
/pgf/bar width=2.8pt, % <-- moved here and changed value
% ---------------------------------------------------------------------
ymin=0,
axis on top,
xtick=data,
enlarge x limits=0.2,
every axis plot/.append style={
fill,
},
cycle list name = Paired,
tick label style={font=\footnotesize},
symbolic x coords={600, 700, 800, 900, 1000, 3000, 9000, 27000},
]
\nextgroupplot[ymax=1, ylabel={$p^\circ=1$}]
\addplot coordinates {(600,1.0000) (700,1.0000) (800,1.0000) (900,1.0000)};
\label{SBC}
\addplot coordinates {(600,0.9956) (700,0.9978) (800,0.9978) (900,0.9989)};
\label{FPE}
\addplot coordinates {(600,0.9956) (700,0.9967) (800,0.9967) (900,1.0000)};
\label{RNML}
\addplot coordinates {(600,0.9956) (700,0.9978) (800,0.9978) (900,0.9989)};
\label{AIC}
\addplot coordinates {(600,0.9967) (700,0.9989) (800,0.9978) (900,1.0000)};
\label{AICc}
\addplot coordinates {(600,1.0000) (700,1.0000) (800,1.0000) (900,1.0000)};
\label{KIC}
\addplot coordinates {(600,1.0000) (700,1.0000) (800,1.0000) (900,1.0000)};
\label{KICc}
\nextgroupplot[ymax=1]
\addplot coordinates {(600,1.0000) (700,1.0000) (800,1.0000) (900,1.0000)};
\addplot coordinates {(600,0.9989) (700,0.9978) (800,0.9978) (900,1.0000)};
\addplot coordinates {(600,1.0000) (700,1.0000) (800,1.0000) (900,1.0000)};
\addplot coordinates {(600,0.9989) (700,0.9978) (800,0.9978) (900,1.0000)};
\addplot coordinates {(600,0.9989) (700,0.9978) (800,0.9978) (900,1.0000)};
\addplot coordinates {(600,1.0000) (700,1.0000) (800,1.0000) (900,1.0000)};
\addplot coordinates {(600,1.0000) (700,1.0000) (800,1.0000) (900,1.0000)};
\nextgroupplot[ymax=1, ylabel={$p^\circ=5$}]
\addplot coordinates {(600,0) (700,0) (800,0) (900,0)};
\addplot coordinates {(600,0.7789) (700,0.8944) (800,0.9533) (900,0.9844)};
\addplot coordinates {(600,0.7289) (700,0.8000) (800,0.8356) (900,0.8756)};
\addplot coordinates {(600,0.7789) (700,0.8933) (800,0.9533) (900,0.9844)};
\addplot coordinates {(600,0.6433) (700,0.8267) (800,0.9167) (900,0.9700)};
\addplot coordinates {(600,0.0944) (700,0.1967) (800,0.3267) (900,0.4522)};
\addplot coordinates {(600,0.0622) (700,0.1522) (800,0.2733) (900,0.3978)};
\nextgroupplot[ymax=1]
\addplot coordinates {(1000,0) (3000,0.3811) (9000,1) (27000,1)};
\addplot coordinates {(1000,0.9933) (3000,0.9989) (9000,0.9967) (27000,0.9967)};
\addplot coordinates {(1000,0.9033) (3000,0.9989) (9000,1) (27000,1)};
\addplot coordinates {(1000,0.9933) (3000,0.9989) (9000,0.9967) (27000,0.9967)};
\addplot coordinates {(1000,0.9944) (3000,0.9989) (9000,0.9978) (27000,0.9967)};
\addplot coordinates {(1000,0.5944) (3000,1) (9000,1) (27000,1)};
\addplot coordinates {(1000,0.5333) (3000,1) (9000,1) (27000,1)};
\nextgroupplot[ylabel={$p^\circ=10$}]
\addplot coordinates {(600,0) (700,0) (800,0) (900,0)};
\addplot coordinates {(600,0.0322) (700,0.1011) (800,0.1700) (900,0.2600)};
\addplot coordinates {(600,0.3078) (700,0.3978) (800,0.4856) (900,0.5478)};
\addplot coordinates {(600,0.0333) (700,0.1033) (800,0.1711) (900,0.2633)};
\addplot coordinates {(600,0.0011) (700,0.0211) (800,0.0689) (900,0.1333)};
\addplot coordinates {(600,0) (700,0) (800,0) (900,0)};
\addplot coordinates {(600,0) (700,0) (800,0) (900,0)};
\nextgroupplot[ymax=1]
\addplot coordinates {(1000,0) (3000,0) (9000,0.3933) (27000,1.0000)};
\addplot coordinates {(1000,0.3367) (3000,0.9967) (9000,0.9967) (27000,0.9944)};
\addplot coordinates {(1000,0.6111) (3000,0.9444) (9000,0.9978) (27000,1.0000)};
\addplot coordinates {(1000,0.3367) (3000,0.9967) (9000,0.9967) (27000,0.9944)};
\addplot coordinates {(1000,0.2333) (3000,0.9978) (9000,0.9978) (27000,0.9944)};
\addplot coordinates {(1000,0.0011) (3000,0.8011) (9000,1.0000) (27000,1.0000)};
\addplot coordinates {(1000,0) (3000,0.7733) (9000,1.0000) (27000,1.0000)};
\nextgroupplot[ylabel={$p^\circ=15$}, xlabel={Sample size}]
\addplot coordinates {(600,0) (700,0) (800,0) (900,0)};
\addplot coordinates {(600,0) (700,0) (800,0) (900,0)};
\addplot coordinates {(600,0.0167) (700,0.0367) (800,0.0678) (900,0.1044)};
\addplot coordinates {(600,0) (700,0) (800,0) (900,0)};
\addplot coordinates {(600,0) (700,0) (800,0) (900,0)};
\addplot coordinates {(600,0) (700,0) (800,0) (900,0)};
\addplot coordinates {(600,0) (700,0) (800,0) (900,0)};
\nextgroupplot[ymax=1, xlabel={Sample size (logarithmic scale)}]
\addplot coordinates {(1000,0) (3000,0) (9000,0) (27000,0.8444)};
\addplot coordinates {(1000,0.0033) (3000,0.8600) (9000,0.9967) (27000,0.9956)};
\addplot coordinates {(1000,0.1456) (3000,0.7944) (9000,0.9856) (27000,1.0000)};
\addplot coordinates {(1000,0.0044) (3000,0.8611) (9000,0.9967) (27000,0.9956)};
\addplot coordinates {(1000,0) (3000,0.7900) (9000,0.9989) (27000,0.9956)};
\addplot coordinates {(1000,0) (3000,0.1378) (9000,1.0000) (27000,1.0000)};
\addplot coordinates {(1000,0) (3000,0.1089) (9000,1.0000) (27000,1.0000)};
\end{groupplot}
% (changed these coordinates a bit)
\path (current bounding box.north west) --
node [anchor=south,rotate=90]
{Empirical prob. of correctly selecting the order}
(current bounding box.south west);
%Legend
% (changed these coordinates a bit)
\path (current bounding box.north west) --
coordinate (legendpos) (current bounding box.north east);
\matrix[
matrix of nodes,
anchor=south,
draw,
inner sep=0.2em,
draw
] at ([yshift=1ex]legendpos) {
\ref{SBC} & SBC &[5pt]
\ref{FPE} & FPE &[5pt]
\ref{RNML} & RNML &[5pt]
\ref{AIC} & AIC &[5pt]
\ref{AICc} & $\mathrm{AIC_{c}}$ &[5pt]
\ref{KIC} & KIC &[5pt]
\ref{KICc} & $\mathrm{KIC_{c}}$ &\\
};
\end{tikzpicture}
\end{center}
\end{document}
