new caption type in captionof

Question

\captionof command from caption package allows caption for various floats. However we cannot use it to typeset an algorithm caption like: \captionof{Algorithm}{<Caption text>}. I tried the following without success.

\setcaptiontype{Algorithm}
\captionsetup{options=algorithm}
\captionof{Algorithm}{My caption}

So my question is, can we define a new type to be used in \captionof command? If so how?

Answer 1

The type is different from what is typically used in the naming. In that regard, the algorithm environment typically use Algorithm as its name. algorithm2e is slightly different though; it uses algocf as the type, so you need to use

\captionof{algocf}{<caption of algorithm>}

Make sure the \captionof macro is used inside an environment (or group).

\documentclass{article}
\usepackage{algorithm2e,caption}
\begin{document}

\begin{algorithm}[H]
  \caption{My algorithm}
\end{algorithm}

\noindent
\begin{minipage}{\linewidth}
  \captionof{algocf}{My algorithm}
\end{minipage}

\end{document}

Answer 2

As to creating a new type, use \newfloat (or just \newcounter).

\documentclass{article}
\usepackage{float}
\usepackage{caption}
\newfloat{Algorithm}{htbp}{loa}
\begin{document}
\captionof{Algorithm}{test}
\end{document}