![変数の説明表の左揃え](https://rvso.com/image/449621/%E5%A4%89%E6%95%B0%E3%81%AE%E8%AA%AC%E6%98%8E%E8%A1%A8%E3%81%AE%E5%B7%A6%E6%8F%83%E3%81%88.png)
次のコードでは、「変数」を左揃えにできない理由がわかりません (おそらく、前文をもう少し洗練させる必要があると思います)。さまざまな解決策を試しましたが、それでも中央揃えのままです。
もう 1 つの (軽微でそれほど重要ではない) 問題は、列の順序を変更して説明を最後に配置しようとしたことです。ただし、常にエラー メッセージが表示されます。何かアイデアはありますか?
\documentclass[11pt]{article}
\usepackage{rotating}
\usepackage{longtable}
\usepackage[labelfont=bf, labelsep=newline, justification=centering, textfont=it]{caption}
\usepackage{adjustbox}
\usepackage{graphicx}
\usepackage{booktabs, makecell, siunitx}
\usepackage{eqparbox}
\pagenumbering{gobble}
\usepackage{booktabs}
\usepackage[referable,para]{threeparttablex}
\usepackage[a4paper,margin=1.5cm]{geometry}
\usepackage{multirow}
\usepackage{pdflscape}
\usepackage{stackengine}
\usepackage{interval}
\usepackage{amsmath,ragged2e} % <-- new
\usepackage{interval,pbox}
\usepackage{booktabs,tabularx}
\sisetup{group-separator={,}, table-format=1.3, table-space-text-post=***,
table-number-alignment =center}
\newcommand*{\MyIndent}
{\hspace*{1.5cm}}
\usepackage{dcolumn}
\newcolumntype{d}[1]{D..{#1}}
\newcommand\mc[1]{\multicolumn{1}{c}{#1}} % handy shortcut macro
\newcommand\mytab[1]{%
\smash[b]{\begin{tabular}[c]{@{}c@{}}#1\end{tabular}}}
\hyphenation{bur-kina}
\begin{document}
\begin{table}
\renewcommand{\arraystretch}{1.5}
\caption{Descriptions of variables\label{A1}}
\begin{tabularx}{\textwidth}{@{}lXSS@{}}
\toprule
\multicolumn{1}{l}{Variables}&\mc{Description}&\mc{Mean}&\mc{SD}\\
\midrule
Health&Test of a really long description which should itself span many rows, in fact occupying much space, hopefully, causing it to span a couple of normal rows. Test of a really long description which should itself span many rows, in fact occupying much space, hopefully, causing it to span a couple of normal rows&\mc{0.8049}&\mc{0.3928}\\
Age&Test of a really long description which should itself span many rows, in fact occupying much space, hopefully, causing it to span a couple of normal rows&\mc{49.16}&\mc{15.82}\\
\bottomrule
\end{tabularx}
\end{table}
\end{document}
答え1
このようなもの?
\documentclass[11pt]{article}
\usepackage{rotating}
\usepackage{longtable}
\usepackage[labelfont=bf, labelsep=newline, justification=centering, textfont=it]{caption}
\usepackage{adjustbox}
\usepackage{graphicx}
\usepackage{booktabs, makecell, siunitx}
\usepackage{eqparbox}
\pagenumbering{gobble}
\usepackage{booktabs}
\usepackage[referable,para]{threeparttablex}
\usepackage[a4paper,margin=1.5cm]{geometry}
\usepackage{multirow}
\usepackage{pdflscape}
\usepackage{stackengine}
\usepackage{interval}
\usepackage{amsmath,ragged2e} % <-- new
\usepackage{interval,pbox}
\usepackage{booktabs,tabularx}
\sisetup{group-separator={,}, table-format=1.3, table-space-text-post=***,
table-number-alignment =center}
\newcommand*{\MyIndent}
{\hspace*{1.5cm}}
\usepackage{dcolumn}
\newcolumntype{d}[1]{D..{#1}}
\newcommand\mc[1]{\multicolumn{1}{c}{#1}} % handy shortcut macro
\newcommand\mytab[1]{%
\smash[b]{\begin{tabular}[c]{@{}c@{}}#1\end{tabular}}}
\hyphenation{bur-kina}
\begin{document}
\begin{table}
\renewcommand{\arraystretch}{1.5}
\caption{Descriptions of variables\label{A1}}
\begin{tabularx}{\textwidth}{@{}lXSS@{}}
\toprule
\multicolumn{1}{@{}l}{Variables}&\mc{Description}&\mc{Mean}&\mc{SD}\\ % @{} here
\midrule
Health&Test of a really long description which should itself span many rows, in fact occupying much space, hopefully, causing it to span a couple of normal rows. Test of a really long description which should itself span many rows, in fact occupying much space, hopefully, causing it to span a couple of normal rows&\mc{0.8049}&\mc{0.3928}\\
Age&Test of a really long description which should itself span many rows, in fact occupying much space, hopefully, causing it to span a couple of normal rows&\mc{49.16}&\mc{15.82}\\
\bottomrule
\end{tabularx}
\end{table}
\end{document}