如何在 algorithm2e 中从特定行开始行号或跳过一行？

Question

我尝试使用该包自定义算法的行号algorithm2e。我想从特定行或给定行开始行号。我使用以下代码示例：

\documentclass{article}

\usepackage[linesnumbered,ruled,vlined]{algorithm2e}

\begin{document}

\begin{algorithm}[!ht]
\caption{Overlapped Co-Clustering}
\DontPrintSemicolon
\SetNoFillComment
\footnotesize

\SetKwInOut{Input}{Input}
\SetKwInOut{Output}{Output}
\SetKwFunction{OCoClus}{OCoClus}

\Input{Input dataset D, Max number of co-clusters K \textit{\{optional\}}, Max object noise threshold $\epsilon_I$ \textit{\{optional\}}, Max attribute noise threshold $\epsilon_J$ \textit{\{optional\}}}
\Output{Set of disjoint and overlapped co-clusters $\Phi$}

\OCoClus{D,K,$\epsilon_I$,$\epsilon_J$}\;
$\prod \leftarrow \emptyset$\;
$D_{r} \leftarrow D$ \textit{\{residual matrix\}}
\end{algorithm}

\end{document}

它生成以下输出：

我希望第二行（行号 2）以 1 开头，而第一行（行号 1）不编号。我没有找到方法来实现这一点。

Answer 1

以下代码介绍了如何删除该行的行号机制\nlnonumber功能。将其放置在行首。\nlln

\documentclass{article}

\usepackage[linesnumbered,ruled]{algorithm2e}

\SetKwInOut{Input}{Input}
\SetKwInOut{Output}{Output}
\SetKwFunction{OCoClus}{OCoClus}
\DontPrintSemicolon
\SetNoFillComment

\let\oldnl\nl
\newcommand{\nlnonumber}{\renewcommand{\nl}{\let\nl\oldnl}}

\begin{document}

\begin{algorithm}
  \caption{Overlapped Co-Clustering}

  \Input{%
    Input dataset $D$, 
    Max number of co-clusters $K$ \textit{\{optional\}}, 
    Max object noise threshold $\epsilon_I$ \textit{\{optional\}}, 
    Max attribute noise threshold $\epsilon_J$ \textit{\{optional\}}}
  \Output{Set of disjoint and overlapped co-clusters $\Phi$}

  \nlnonumber
  \OCoClus{$D$, $K$, $\epsilon_I$, $\epsilon_J$}\;
  $\prod \leftarrow \emptyset$\;
  $D_r \leftarrow D$ \textit{\{residual matrix\}}
\end{algorithm}

\end{document}