\section{mlpack\+:\+:nca Namespace Reference}
\label{namespacemlpack_1_1nca}\index{mlpack\+::nca@{mlpack\+::nca}}


Neighborhood Components Analysis.  


\subsection*{Classes}
\begin{DoxyCompactItemize}
\item 
class \textbf{ N\+CA}
\begin{DoxyCompactList}\small\item\em An implementation of Neighborhood Components Analysis, both a linear dimensionality reduction technique and a distance learning technique. \end{DoxyCompactList}\item 
class \textbf{ Softmax\+Error\+Function}
\begin{DoxyCompactList}\small\item\em The \char`\"{}softmax\char`\"{} stochastic neighbor assignment probability function. \end{DoxyCompactList}\end{DoxyCompactItemize}


\subsection{Detailed Description}
Neighborhood Components Analysis.