我知道这是一个常见问题，但我尝试了几种解决方案，但都不起作用。我想在“after”之后创建一个新的断点，并且内容仍然居中：
这是从这张大表中得到的：
这是代码。我正在使用tabularx。我感兴趣的行标有%%%%%%% THIS LINE %%%%%%%%%：
\begin{table}[p]
\caption{Studies that have performed beat-to-beat analyses of the electrocardiogram for predicting atrial fibrillation.}
\label{table:AF_prediction_b2b}
\footnotesize
\setlist[itemize]{nosep,
leftmargin=*,
before=\vspace{-0.6\baselineskip},
after=\vspace{-\baselineskip}
}
\setlength\tabcolsep{6pt}
\begin{tabularx}{\linewidth}{@{}
>{\hsize=0.5\hsize}L
>{\hsize=0.5\hsize}L
c L
>{\hsize=0.9\hsize}L
>{\hsize=0.7\hsize}L
@{}}
\toprule
\thead[bl]{Study \\ name}
& \thead[lb]{Cohort\\ dimension}
& \thead[lb]{Time before\\ AF onset}
& \thead[bl]{ECG\\ features}
& \thead[lb]{Used metric}
& \thead[lb]{Model\\ (accuracy)} \\
\midrule
Martinez \textit{et al.} \cite{Martinez2012}
& 24 PAF
& 2h
& \begin{itemize}
\item P-wave intervals
\item Heart rate
\end{itemize} & Linear regression slope of the variability
& Linear discriminant (\SI{90.79}{\%}) \\
\addlinespace
Martinez \textit{et al.} \cite{Martinez2014}
& 46 PAF + 53 healthy
& 2h
& \begin{itemize}
\item P-wave morphology: area, conduction velocity, arc-length
\end{itemize}
& Linear regression slope of the variability
& Decision tree (\si{86.33}{\%}) \\
\addlinespace
Martinez \textit{et al.} \cite{Martinez2015a}
& 46 PAF + 53 healthy
& 2h
& \begin{itemize}
\item Gaussian fit parameters (A,C, W) and error
\end{itemize}
& Linear regression slope of the variability
& Stepwise discriminant analysis (\SI{86.69}{\%}) \\
\addlinespace
Sovilj \textit{et al.} \cite{Sovilj2010}
& 14 POAF + 36 healthy
& 48h after CABG %%%%%%% THIS LINE %%%%%%%%%
& \begin{itemize}
\item P-wave intervals
\item Heart rate
\item Wavelet energies and entropy
\end{itemize}
& Cumulative rank with statistically significant features
& Decision tree [applied over the time-course] (\SI{85.3}{\%}) \\
\addlinespace
Ovreiu \textit{et al.} \cite{Ovreiu2011}
& 37 POAF + 53 healthy
& 30m
& \begin{itemize}
\item Number of premature atrial complexes
\item HRV: mean, SDRR, rMSSD, total power, LF/HF, entropy
\item P-wave duration, amplitude, shape, inflection point, energy ratio
\end{itemize}
& Mean value
& Neuro-fuzzy (\SI{70}{\%}) \\
\addlinespace
Martinez \textit{et al.} \cite{Martinez2015}
& 46 PAF
& 2h
& \begin{itemize}
\item P-wave intervals
\item P-wave area, arc-length
\end{itemize}
& Central tendency measurement
& Decision tree (\SI{90}{\%}) \\
\addlinespace
Alcaraz \textit{et al.} \cite{Alcaraz2015b}
& 46 PAF + 53 healthy
& 2h
& \begin{itemize}
\item P-wave frequency energies
\end{itemize}
& Linear regression slope of the variability
& Stepwise discriminant analysis (\SI{80}{\%}) \\
\addlinespace
Censi \textit{et al.} \cite{Censi2016}
& 73 pers. AF + 20 healthy
& n/a
& \begin{itemize}
\item P-wave duration and dispersion
\item P-wave morphology: polarity changes, fragmented conduction index
\item P-wave variability: amplitude dispersion index, correlation coefficient, DTW
\end{itemize}
& Mean value
& Receiver operating characteristic curves (\SI{100}{\%}) \\
\bottomrule
\end{tabularx}
\footnotesize
\end{table}
谁能帮我？
答案1
您正在使用makecell; 然后
\makecell[tc]{48h after \\ CABG}
就足够了。
答案2
使用tabularx环境时，必须确保\hsize修饰符的总和等于类型的列数X。如果您将第三列的列类型从 更改c为C（请参阅下面的 定义C），并且如果您解决了第一句中提到的问题，您甚至不需要通过指令指定显式换行符\thead。
\documentclass{article}
% Set page size parameters suitably
\usepackage[letterpaper,margin=1in]{geometry}
\usepackage[english]{babel}
\usepackage{tabularx,ragged2e,booktabs,siunitx}
\newcolumntype{L}{>{\RaggedRight\arraybackslash\hspace{0pt}}X}
\newcolumntype{C}{>{\Centering\arraybackslash\hspace{0pt}}X}
\usepackage[skip=0.333\baselineskip]{caption} % optional
\usepackage{enumitem}
%% Define a custom itemize-like environment:
\newlist{mylist}{itemize}{1}
\setlist[mylist]{label={\footnotesize\textbullet},
nosep, leftmargin=*,
before=\begin{minipage}[t]{\hsize},
after=\end{minipage}}
\begin{document}
\begin{table}[p]
\caption{Studies that have performed beat-to-beat analyses of the electrocardiogram for predicting atrial fibrillation.}
\label{table:AF_prediction_b2b}
%\footnotesize -- doesn't seem to be necessary
\setlength\tabcolsep{4pt}
\begin{tabularx}{\textwidth}{@{}
%% Note: 0.6+0.7+0.9+1.9+1.0+0.9 = 6
>{\hsize=0.6\hsize}L
>{\hsize=0.7\hsize}L
>{\hsize=0.9\hsize}C
>{\hsize=1.9\hsize}L
>{\hsize=1.0\hsize}L
>{\hsize=0.9\hsize}L
@{}}
\toprule
Study name
& Cohort dimension
& Time before AF onset
& ECG features
& Used metric
& Model \newline (accuracy) \\
\midrule
Martinez \textit{et~al.} \cite{Martinez2012}
& 24 PAF
& 2h
& \begin{mylist}
\item P-wave intervals
\item Heart rate
\end{mylist}
& Linear regression slope of the variability
& Linear discriminant (\SI{90.79}{\%}) \\
\addlinespace
Martinez \textit{et~al.} \cite{Martinez2014}
& 46 PAF + 53 healthy
& 2h
& \begin{mylist}
\item P-wave morphology: area, conduction velocity, arc-length
\end{mylist}
& Linear regression slope of the variability
& Decision tree (\si{86.33}{\%}) \\
\addlinespace
Martinez \textit{et~al.} \cite{Martinez2015a}
& 46 PAF + 53 healthy
& 2h
& \begin{mylist}
\item Gaussian fit parameters (A, C, W) and error
\end{mylist}
& Linear regression slope of the variability
& Stepwise discriminant analysis (\SI{86.69}{\%}) \\
\addlinespace
Sovilj \textit{et~al.} \cite{Sovilj2010}
& 14 POAF + 36 healthy
& 48h after CABG %%%%%%% THIS LINE %%%%%%%%%
& \begin{mylist}
\item P-wave intervals
\item Heart rate
\item Wavelet energies and entropy
\end{mylist}
& Cumulative rank with statistically significant features
& Decision tree [applied over the time-course] (\SI{85.3}{\%}) \\
\addlinespace
Ovreiu \textit{et~al.} \cite{Ovreiu2011}
& 37 POAF + 53 healthy
& 30m
& \begin{mylist}
\item Number of premature atrial complexes
\item HRV: mean, SDRR, rMSSD, total power, LF/HF, entropy
\item P-wave duration, amplitude, shape, inflection point, energy ratio
\end{mylist}
& Mean value
& Neuro-fuzzy (\SI{70}{\%}) \\
\addlinespace
Martinez \textit{et~al.} \cite{Martinez2015}
& 46 PAF
& 2h
& \begin{mylist}
\item P-wave intervals
\item P-wave area, arc-length
\end{mylist}
& Central tendency measurement
& Decision tree (\SI{90}{\%}) \\
\addlinespace
Alcaraz \textit{et~al.} \cite{Alcaraz2015b}
& 46 PAF + 53 healthy
& 2h
& \begin{mylist}
\item P-wave frequency energies
\end{mylist}
& Linear regression slope of the variability
& Stepwise discriminant analysis (\SI{80}{\%}) \\
\addlinespace
Censi \textit{et~al.} \cite{Censi2016}
& 73 pers. AF + 20 healthy
& n/a
& \begin{mylist}
\item P-wave duration and dispersion
\item P-wave morphology: polarity changes, fragmented conduction index
\item P-wave variability: amplitude dispersion index, correlation coefficient, DTW
\end{mylist}
& Mean value
& Receiver operating characteristic curves (\SI{100}{\%})
\\
\bottomrule
\end{tabularx}
\footnotesize
\end{table}
\end{document}