\hypertarget{classemix}{
\section{emix Class Reference}
\label{classemix}\index{emix@{emix}}
}
Mixture of epdfs.  


{\tt \#include $<$emix.h$>$}

Inheritance diagram for emix:\nopagebreak
\begin{figure}[H]
\begin{center}
\leavevmode
\includegraphics[width=40pt]{classemix__inherit__graph}
\end{center}
\end{figure}
Collaboration diagram for emix:\nopagebreak
\begin{figure}[H]
\begin{center}
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\includegraphics[width=40pt]{classemix__coll__graph}
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\subsection*{Public Member Functions}
\begin{CompactItemize}
\item 
\hypertarget{classemix_62194619791d5f1da88cad01cfc9339d}{
\hyperlink{classemix_62194619791d5f1da88cad01cfc9339d}{emix} (const \hyperlink{classRV}{RV} \&\hyperlink{classepdf_74da992e3f5d598da8850b646b79b9d9}{rv})}
\label{classemix_62194619791d5f1da88cad01cfc9339d}

\begin{CompactList}\small\item\em Default constructor. \item\end{CompactList}\item 
\hypertarget{classemix_d3789d50a3327a6de552db077af5e4c5}{
void \hyperlink{classemix_d3789d50a3327a6de552db077af5e4c5}{set\_\-parameters} (const vec \&\hyperlink{classemix_cdc8f4e2a5e43595ac5450d8a7f9d1ab}{w}, const Array$<$ \hyperlink{classepdf}{epdf} $\ast$ $>$ \&\hyperlink{classemix_7155d827417b53fb6aa5cff1459e6eb4}{Coms}, bool copy=true)}
\label{classemix_d3789d50a3327a6de552db077af5e4c5}

\begin{CompactList}\small\item\em Set weights {\tt w} and components {\tt Coms} , Coms are not copied! \item\end{CompactList}\item 
\hypertarget{classemix_0650601f24e633e0ab09aa1e46c14483}{
vec \hyperlink{classemix_0650601f24e633e0ab09aa1e46c14483}{sample} () const }
\label{classemix_0650601f24e633e0ab09aa1e46c14483}

\begin{CompactList}\small\item\em Returns a sample, $x$ from density $epdf(rv)$. \item\end{CompactList}\item 
\hypertarget{classemix_b662a51d042b062020460e64bff4e9e8}{
vec \hyperlink{classemix_b662a51d042b062020460e64bff4e9e8}{mean} () const }
\label{classemix_b662a51d042b062020460e64bff4e9e8}

\begin{CompactList}\small\item\em return expected value \item\end{CompactList}\item 
\hypertarget{classemix_469e910479b3402589104ef3bb1b5741}{
double \hyperlink{classemix_469e910479b3402589104ef3bb1b5741}{evalpdflog} (const vec \&val) const }
\label{classemix_469e910479b3402589104ef3bb1b5741}

\begin{CompactList}\small\item\em Compute log-probability of argument {\tt val}. \item\end{CompactList}\item 
\hypertarget{classemix_35baf0f62307455cebfbf462144b4dd8}{
vec \& \hyperlink{classemix_35baf0f62307455cebfbf462144b4dd8}{\_\-w} ()}
\label{classemix_35baf0f62307455cebfbf462144b4dd8}

\begin{CompactList}\small\item\em returns a pointer to the internal mean value. Use with Care! \item\end{CompactList}\item 
\hypertarget{classemix_4d7baeb2a9e3fca1d8fd32a107df291d}{
void \hyperlink{classemix_4d7baeb2a9e3fca1d8fd32a107df291d}{ownComs} ()}
\label{classemix_4d7baeb2a9e3fca1d8fd32a107df291d}

\begin{CompactList}\small\item\em Auxiliary function for taking ownership of the \hyperlink{classemix_7155d827417b53fb6aa5cff1459e6eb4}{Coms()}. \item\end{CompactList}\item 
\hypertarget{classepdf_54d7dd53a641b618771cd9bee135181f}{
virtual mat \hyperlink{classepdf_54d7dd53a641b618771cd9bee135181f}{sampleN} (int N) const }
\label{classepdf_54d7dd53a641b618771cd9bee135181f}

\begin{CompactList}\small\item\em Returns N samples from density $epdf(rv)$. \item\end{CompactList}\item 
\hypertarget{classepdf_3ea597362e11a0040fe7c990269d072c}{
virtual double \hyperlink{classepdf_3ea597362e11a0040fe7c990269d072c}{eval} (const vec \&val) const }
\label{classepdf_3ea597362e11a0040fe7c990269d072c}

\begin{CompactList}\small\item\em Compute probability of argument {\tt val}. \item\end{CompactList}\item 
\hypertarget{classepdf_cebbdd7a85e6328f7358fc0ba8eee06c}{
virtual vec \hyperlink{classepdf_cebbdd7a85e6328f7358fc0ba8eee06c}{evalpdflog\_\-m} (const mat \&Val) const }
\label{classepdf_cebbdd7a85e6328f7358fc0ba8eee06c}

\begin{CompactList}\small\item\em Compute log-probability of multiple values argument {\tt val}. \item\end{CompactList}\item 
\hypertarget{classepdf_3ba08c0e788deff22134c049b9269666}{
\hyperlink{classmpdf}{mpdf} $\ast$ \hyperlink{classepdf_3ba08c0e788deff22134c049b9269666}{condition} (const \hyperlink{classRV}{RV} \&\hyperlink{classepdf_74da992e3f5d598da8850b646b79b9d9}{rv})}
\label{classepdf_3ba08c0e788deff22134c049b9269666}

\begin{CompactList}\small\item\em Return conditional density on the given \hyperlink{classRV}{RV}, the remaining rvs will be in conditioning. \item\end{CompactList}\item 
\hypertarget{classepdf_bc0c171b6dafacd78d26263913b1d0c0}{
\hyperlink{classepdf}{epdf} $\ast$ \hyperlink{classepdf_bc0c171b6dafacd78d26263913b1d0c0}{marginal} (const \hyperlink{classRV}{RV} \&\hyperlink{classepdf_74da992e3f5d598da8850b646b79b9d9}{rv})}
\label{classepdf_bc0c171b6dafacd78d26263913b1d0c0}

\begin{CompactList}\small\item\em Return marginal density on the given \hyperlink{classRV}{RV}, the remainig rvs are intergrated out. \item\end{CompactList}\item 
\hypertarget{classepdf_ca0d32aabb4cbba347e0c37fe8607562}{
const \hyperlink{classRV}{RV} \& \hyperlink{classepdf_ca0d32aabb4cbba347e0c37fe8607562}{\_\-rv} () const }
\label{classepdf_ca0d32aabb4cbba347e0c37fe8607562}

\begin{CompactList}\small\item\em access function, possibly dangerous! \item\end{CompactList}\item 
\hypertarget{classepdf_7fb94ce90d1ac7077d29f7d6a6c3e0a5}{
void \hyperlink{classepdf_7fb94ce90d1ac7077d29f7d6a6c3e0a5}{\_\-renewrv} (const \hyperlink{classRV}{RV} \&in\_\-rv)}
\label{classepdf_7fb94ce90d1ac7077d29f7d6a6c3e0a5}

\begin{CompactList}\small\item\em modifier function - useful when copying epdfs \item\end{CompactList}\end{CompactItemize}
\subsection*{Protected Attributes}
\begin{CompactItemize}
\item 
\hypertarget{classemix_cdc8f4e2a5e43595ac5450d8a7f9d1ab}{
vec \hyperlink{classemix_cdc8f4e2a5e43595ac5450d8a7f9d1ab}{w}}
\label{classemix_cdc8f4e2a5e43595ac5450d8a7f9d1ab}

\begin{CompactList}\small\item\em weights of the components \item\end{CompactList}\item 
\hypertarget{classemix_7155d827417b53fb6aa5cff1459e6eb4}{
Array$<$ \hyperlink{classepdf}{epdf} $\ast$ $>$ \hyperlink{classemix_7155d827417b53fb6aa5cff1459e6eb4}{Coms}}
\label{classemix_7155d827417b53fb6aa5cff1459e6eb4}

\begin{CompactList}\small\item\em Component (epdfs). \item\end{CompactList}\item 
\hypertarget{classemix_7d0d863e6066ee02947914ff06ac34e8}{
bool \hyperlink{classemix_7d0d863e6066ee02947914ff06ac34e8}{destroyComs}}
\label{classemix_7d0d863e6066ee02947914ff06ac34e8}

\begin{CompactList}\small\item\em Flag if owning Coms. \item\end{CompactList}\item 
\hypertarget{classepdf_74da992e3f5d598da8850b646b79b9d9}{
\hyperlink{classRV}{RV} \hyperlink{classepdf_74da992e3f5d598da8850b646b79b9d9}{rv}}
\label{classepdf_74da992e3f5d598da8850b646b79b9d9}

\begin{CompactList}\small\item\em Identified of the random variable. \item\end{CompactList}\end{CompactItemize}


\subsection{Detailed Description}
Mixture of epdfs. 

Density function: \[ f(x) = \sum_{i=1}^{n} w_{i} f_i(x), \quad \sum_{i=1}^n w_i = 1. \] where $f_i(x)$ is any density on random variable $x$, called {\em component\/}, 

The documentation for this class was generated from the following files:\begin{CompactItemize}
\item 
work/git/mixpp/bdm/stat/\hyperlink{emix_8h}{emix.h}\item 
work/git/mixpp/bdm/stat/emix.cpp\end{CompactItemize}
