algorithm2eline-numbering
I have the following preamble for algorithm2e:
\usepackage[ruled,vlined,linesnumbered,resetcount,algochapter]{algorithm2e}
I have many algorithms, in on of the algorithm as follows:
\begin{algorithm}[t!]
\centering
nonumbering
\caption{CAmple}\label{algoCPOR}
\end{algorithm}
I do not want the line nonumbering (only that line) to be numbered, how should I achieve this?
You could just force the counter associated with that environment.
Note that, in typical LaTeX fashion, counters are incremented just before they're used. So, in order to force the algorithm to start as Algorithm 3 (say), one would set the associated counter to 2. The counter used by algorithm2e for the algorithm environment is algocf (named after the author, Christophe Fiorio, I presume). So, using
\setcounter{algocf}{2}
immediately before using the algorithm environment would set the following algorithm as Algorithm 3.
The following example is taken from the algorithm2e documentation:
\documentclass{article}
\usepackage[ruled]{algorithm2e}% http://ctan.org/pkg/algorithm2e
\begin{document}
\setcounter{algocf}{2}% Modify counter of algorithm
\begin{algorithm}
\DontPrintSemicolon
\KwData{$G=(X,U)$ such that $G^{tc}$ is an order.}
\KwResult{$G’=(X,V)$ with $V\subseteq U$ such that $G’^{tc}$ is an
interval order.}
\Begin{
$V \longleftarrow U$\;
$S \longleftarrow \emptyset$\;
\For{$x\in X$}{
$NbSuccInS(x) \longleftarrow 0$\;
$NbPredInMin(x) \longleftarrow 0$\;
$NbPredNotInMin(x) \longleftarrow |ImPred(x)|$\;
}
\For{$x \in X$}{
\If{$NbPredInMin(x) = 0$ {\bf and} $NbPredNotInMin(x) = 0$}{
$AppendToMin(x)$}
}
\nl\While{$S \neq \emptyset$}{\label{InRes1}
\nlset{REM} remove $x$ from the list of $T$ of maximal index\;\label{InResR}
\lnl{InRes2}\While{$|S \cap ImSucc(x)| \neq |S|$}{
\For{$ y \in S-ImSucc(x)$}{
\{ remove from $V$ all the arcs $zy$ : \}\;
\For{$z \in ImPred(y) \cap Min$}{
remove the arc $zy$ from $V$\;
$NbSuccInS(z) \longleftarrow NbSuccInS(z) - 1$\;
move $z$ in $T$ to the list preceding its present list\;
\{i.e. If $z \in T[k]$, move $z$ from $T[k]$ to
$T[k-1]$\}\;
}
$NbPredInMin(y) \longleftarrow 0$\;
$NbPredNotInMin(y) \longleftarrow 0$\;
$S \longleftarrow S - \{y\}$\;
$AppendToMin(y)$\;
}
}
$RemoveFromMin(x)$\;
}
}
\caption{IntervalRestriction\label{IR}}
\end{algorithm}
\end{document}
Perhaps you mean the additional vertical space at the end of the if and for blocks.
It can be configured by \SetVlineSkip:
\documentclass{article}
\usepackage[boxruled,vlined,linesnumbered]{algorithm2e}
\SetVlineSkip{0pt}
\begin{document}
\begin{algorithm}
\caption{Caption of algorithm}
\If {$\lfloor c\ (\log (n+1) - \log n) \rfloor > 1$}
{
$u \leftarrow {\tt SampleControl}$\;
$U \leftarrow \{ u \} \cup U_m$\;
}
${\tt ConnectState}(z, S_{n+1}, U, P_n, Q_n, \delta_n)$\;
\eIf{$\min_{u \in U} \Delta t_{n+1} (z_{n+1}, u) \leq \delta_n$}
{ $\delta_{n+1} = \delta_n/2$\;
\For{$z \in S_{n+1}$}{
${\tt ConnectState}(z, S_{n+1}, U, P_{n+1}, Q_{n+1},
\delta_{n+1})$\;
}}{ $\delta_{n+1} \leftarrow \delta_n$\;
\For{$z' \in Z_\mathrm{near}(z_{n+1})$}{
${\tt ConnectState}(z', S_{n+1}, U, P_{n+1}, Q_{n+1},
\delta_{n+1})$\;
}}
\end{algorithm}
\end{document}
BTW, \SetVlineSkip is defined as:
\newcommand{\SetVlineSkip}[1]{\skiphlne=#1}%
A better definition for \SetVlineSkip would be (terminating of the assignment, support of package calc):
\renewcommand*{\SetVlineSkip}{\setlength{\skiphlne}}
Best Answer
Depending on your use-case, you can either use
\LinesNotNumberedor\LinesNumberedHiddento temporarily remove lines numbers in analgorithm. Under the latter,\ShowLnprints the line number for that specific line (if you wish to intermix showing/not):