为什么我的脚注使用符号而不是数字？

Question

我希望我的脚注用阿拉伯数字编号。但是，它们有符号而不是阿拉伯数字。虽然我插入了代码，但\renewcommand{\thefootnote}{\arabic{footnote}}脚注仍然有符号而不是数字。

我的代码如下：

\documentclass[12pt,a4paper,abstracton]{article}
\usepackage{tablefootnote}
\usepackage{copyrightbox}
\begin{document}

\renewcommand{\thefootnote}{\arabic{footnote}}

 \begin{sidewaystable}[!htbp] \centering
  \caption{Data Sources} 
  \label{Data Sources} 
\begin{adjustbox}{width=\textwidth}
 \makeatletter
\renewcommand{\CRB@setcopyrightfont}{%
\footnotesize
\color{black}}
\makeatother
\copyrightbox [b] {
\begin{tabular} {llll}
\hline
variable name & unit of measure & main data source & complementary data sources\\
\hline
BLA BLA BLA & BLA BLA BLA & www.BLA.com \footnote{original data stem from BLA BLA BLA} & none\\
\end{tabular}
}{source: own representation}
\end{adjustbox}
\end{sidewaystable}

Answer 1

该包提供了在无法工作的表或环境中使用的tablefootnote命令。\tablefootnotesidewaystable\footnote

\documentclass[12pt,a4paper]{article}

\usepackage{rotating} % rotate table LOAD HERE <<<<<<
\usepackage{tablefootnote}
\usepackage{copyrightbox}
\usepackage{adjustbox}

\makeatletter
\renewcommand{\CRB@setcopyrightfont}{%
    \footnotesize
    \color{black}}
\makeatother


\begin{document}    
    
\begin{sidewaystable}[!htbp]
 \centering
    \caption{Data Sources} 
    \label{Data Sources} 
    \begin{adjustbox}{width=\textwidth}         
        \copyrightbox [b] {
            \begin{tabular} {llll}
                \hline
                variable name & unit of measure & main data source & complementary data sources\\
                \hline
                BLA BLA BLA & BLA BLA BLA & www.BLA.com \tablefootnote{original data stem from BLA BLA BLA} & none\\% changed <<<<<<<<<<<<
            \end{tabular}
        }{source: own representation}
    \end{adjustbox}
\end{sidewaystable}

\end{document}