![如何标记并引用表格中的特定行?](https://linux22.com/image/318320/%E5%A6%82%E4%BD%95%E6%A0%87%E8%AE%B0%E5%B9%B6%E5%BC%95%E7%94%A8%E8%A1%A8%E6%A0%BC%E4%B8%AD%E7%9A%84%E7%89%B9%E5%AE%9A%E8%A1%8C%EF%BC%9F.png)
我正在创建一个表来记录一些计算邻近运算符的规则。我希望能够标记某些行并在以后引用它们。有什么好方法可以做到这一点?
这是我目前拥有的表格的 MWE:
\documentclass{article}
\usepackage{amsmath,amssymb,algpseudocode,algorithm,booktabs}
\newcommand{\prox}{\text{prox}}
\begin{document}
\begin{table}[htbp]
\renewcommand{\arraystretch}{1.3}
\begin{center}
\caption{Prox-operator calculus rules}
\label{proxRulesTable}
\begin{tabular}{@{}l l l @{}}
\toprule
$g(x)$ & $\prox_{tg}(x)$ \\ \midrule
$\sum_{k=1}^K f_k(x_k)$ & $(\prox_{tf_1}(x_1),\ldots,\prox_{t f_K}(x_K))$ \\
$cf(x - x_0)$ & $\prox_{ctf}(x - x_0) + x_0$ \\
$f^*(x)$ & $x - t \prox_{(1/t)f}(x/t)$ \\
$I_C(x)$ & $P_C(x) = \text{projection of } x \text{ onto } C$ \\
$I_{\geq 0}(x)$ & $x_+ = \max(x,0)$ \\
$\| x \|$ & $x - t P_B(x)$, where $B$ is dual norm unit ball \\
\end{tabular}
\end{center}
\end{table}
\end{document}
这是我目前拥有的表格的图片:
答案1
不太清楚您想要什么样的标签或如何引用它们。也许是这样的?
\documentclass{article}
\usepackage{amsmath,amssymb,algpseudocode,algorithm,booktabs}
\newcommand{\prox}{\text{prox}}
\newcounter{proxy}[table]
\setcounter{proxy}{0}
\renewcommand*\theproxy{\thetable.\arabic{proxy}}
\newcommand*\makeproxy[1]{\refstepcounter{proxy}(\theproxy)\label{#1}}
\begin{document}
\begin{table}[htbp]
\renewcommand{\arraystretch}{1.3}
\centering
\caption{Prox-operator calculus rules}
\label{proxRulesTable}
\begin{tabular}{@{}l l l @{}}
\toprule
$g(x)$ & $\prox_{tg}(x)$ \\ \midrule
$\sum_{k=1}^K f_k(x_k)$ & $(\prox_{tf_1}(x_1),\ldots,\prox_{t f_K}(x_K))$ \\
$cf(x - x_0)$ & $\prox_{ctf}(x - x_0) + x_0$ & \makeproxy{row:a}\\
$f^*(x)$ & $x - t \prox_{(1/t)f}(x/t)$ \\
$I_C(x)$ & $P_C(x) = \text{projection of } x \text{ onto } C$ \\
$I_{\geq 0}(x)$ & $x_+ = \max(x,0)$ & \makeproxy{row:b}\\
$\| x \|$ & $x - t P_B(x)$, where $B$ is dual norm unit ball \\
\end{tabular}
\end{table}
As shown in rows \ref{row:a}, \ref{row:b}, \ref{row:c}, \ref{row:d} and \ref{row:e}\dots
\begin{table}[htbp]
\renewcommand{\arraystretch}{1.3}
\centering
\caption{Prox-operator calculus rules}
\label{proxRulesTable2}
\begin{tabular}{@{}l l l @{}}
\toprule
$g(x)$ & $\prox_{tg}(x)$ & \makeproxy{row:c} \\ \midrule
$\sum_{k=1}^K f_k(x_k)$ & $(\prox_{tf_1}(x_1),\ldots,\prox_{t f_K}(x_K))$ \\
$cf(x - x_0)$ & $\prox_{ctf}(x - x_0) + x_0$ & \makeproxy{row:d} \\
$f^*(x)$ & $x - t \prox_{(1/t)f}(x/t)$ \\
$I_C(x)$ & $P_C(x) = \text{projection of } x \text{ onto } C$ \\
$I_{\geq 0}(x)$ & $x_+ = \max(x,0)$ & \makeproxy{row:e} \\
$\| x \|$ & $x - t P_B(x)$, where $B$ is dual norm unit ball \\
\end{tabular}
\end{table}
\end{document}