| 1 | \hypertarget{classemix}{ |
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| 2 | \section{emix Class Reference} |
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| 3 | \label{classemix}\index{emix@{emix}} |
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| 4 | } |
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| 5 | Mixture of epdfs. |
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| 6 | |
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| 7 | |
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| 8 | {\tt \#include $<$emix.h$>$} |
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| 9 | |
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| 10 | Inheritance diagram for emix:\nopagebreak |
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| 11 | \begin{figure}[H] |
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| 12 | \begin{center} |
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| 13 | \leavevmode |
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| 14 | \includegraphics[width=40pt]{classemix__inherit__graph} |
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| 15 | \end{center} |
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| 16 | \end{figure} |
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| 17 | Collaboration diagram for emix:\nopagebreak |
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| 18 | \begin{figure}[H] |
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| 19 | \begin{center} |
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| 20 | \leavevmode |
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| 21 | \includegraphics[width=40pt]{classemix__coll__graph} |
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| 22 | \end{center} |
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| 23 | \end{figure} |
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| 24 | \subsection*{Public Member Functions} |
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| 25 | \begin{CompactItemize} |
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| 26 | \item |
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| 27 | \hypertarget{classemix_62194619791d5f1da88cad01cfc9339d}{ |
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| 28 | \hyperlink{classemix_62194619791d5f1da88cad01cfc9339d}{emix} (const \hyperlink{classRV}{RV} \&\hyperlink{classepdf_74da992e3f5d598da8850b646b79b9d9}{rv})} |
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| 29 | \label{classemix_62194619791d5f1da88cad01cfc9339d} |
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| 30 | |
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| 31 | \begin{CompactList}\small\item\em Default constructor. \item\end{CompactList}\item |
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| 32 | \hypertarget{classemix_d3789d50a3327a6de552db077af5e4c5}{ |
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| 33 | 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)} |
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| 34 | \label{classemix_d3789d50a3327a6de552db077af5e4c5} |
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| 35 | |
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| 36 | \begin{CompactList}\small\item\em Set weights {\tt w} and components {\tt Coms} , Coms are not copied! \item\end{CompactList}\item |
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| 37 | \hypertarget{classemix_0650601f24e633e0ab09aa1e46c14483}{ |
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| 38 | vec \hyperlink{classemix_0650601f24e633e0ab09aa1e46c14483}{sample} () const } |
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| 39 | \label{classemix_0650601f24e633e0ab09aa1e46c14483} |
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| 40 | |
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| 41 | \begin{CompactList}\small\item\em Returns a sample, $x$ from density $epdf(rv)$. \item\end{CompactList}\item |
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| 42 | \hypertarget{classemix_b662a51d042b062020460e64bff4e9e8}{ |
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| 43 | vec \hyperlink{classemix_b662a51d042b062020460e64bff4e9e8}{mean} () const } |
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| 44 | \label{classemix_b662a51d042b062020460e64bff4e9e8} |
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| 45 | |
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| 46 | \begin{CompactList}\small\item\em return expected value \item\end{CompactList}\item |
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| 47 | \hypertarget{classemix_469e910479b3402589104ef3bb1b5741}{ |
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| 48 | double \hyperlink{classemix_469e910479b3402589104ef3bb1b5741}{evalpdflog} (const vec \&val) const } |
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| 49 | \label{classemix_469e910479b3402589104ef3bb1b5741} |
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| 50 | |
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| 51 | \begin{CompactList}\small\item\em Compute log-probability of argument {\tt val}. \item\end{CompactList}\item |
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| 52 | \hypertarget{classemix_35baf0f62307455cebfbf462144b4dd8}{ |
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| 53 | vec \& \hyperlink{classemix_35baf0f62307455cebfbf462144b4dd8}{\_\-w} ()} |
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| 54 | \label{classemix_35baf0f62307455cebfbf462144b4dd8} |
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| 55 | |
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| 56 | \begin{CompactList}\small\item\em returns a pointer to the internal mean value. Use with Care! \item\end{CompactList}\item |
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| 57 | \hypertarget{classemix_4d7baeb2a9e3fca1d8fd32a107df291d}{ |
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| 58 | void \hyperlink{classemix_4d7baeb2a9e3fca1d8fd32a107df291d}{ownComs} ()} |
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| 59 | \label{classemix_4d7baeb2a9e3fca1d8fd32a107df291d} |
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| 60 | |
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| 61 | \begin{CompactList}\small\item\em Auxiliary function for taking ownership of the \hyperlink{classemix_7155d827417b53fb6aa5cff1459e6eb4}{Coms()}. \item\end{CompactList}\item |
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| 62 | \hypertarget{classepdf_54d7dd53a641b618771cd9bee135181f}{ |
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| 63 | virtual mat \hyperlink{classepdf_54d7dd53a641b618771cd9bee135181f}{sampleN} (int N) const } |
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| 64 | \label{classepdf_54d7dd53a641b618771cd9bee135181f} |
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| 65 | |
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| 66 | \begin{CompactList}\small\item\em Returns N samples from density $epdf(rv)$. \item\end{CompactList}\item |
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| 67 | \hypertarget{classepdf_3ea597362e11a0040fe7c990269d072c}{ |
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| 68 | virtual double \hyperlink{classepdf_3ea597362e11a0040fe7c990269d072c}{eval} (const vec \&val) const } |
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| 69 | \label{classepdf_3ea597362e11a0040fe7c990269d072c} |
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| 70 | |
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| 71 | \begin{CompactList}\small\item\em Compute probability of argument {\tt val}. \item\end{CompactList}\item |
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| 72 | \hypertarget{classepdf_cebbdd7a85e6328f7358fc0ba8eee06c}{ |
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| 73 | virtual vec \hyperlink{classepdf_cebbdd7a85e6328f7358fc0ba8eee06c}{evalpdflog\_\-m} (const mat \&Val) const } |
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| 74 | \label{classepdf_cebbdd7a85e6328f7358fc0ba8eee06c} |
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| 75 | |
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| 76 | \begin{CompactList}\small\item\em Compute log-probability of multiple values argument {\tt val}. \item\end{CompactList}\item |
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| 77 | \hypertarget{classepdf_3ba08c0e788deff22134c049b9269666}{ |
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| 78 | \hyperlink{classmpdf}{mpdf} $\ast$ \hyperlink{classepdf_3ba08c0e788deff22134c049b9269666}{condition} (const \hyperlink{classRV}{RV} \&\hyperlink{classepdf_74da992e3f5d598da8850b646b79b9d9}{rv})} |
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| 79 | \label{classepdf_3ba08c0e788deff22134c049b9269666} |
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| 80 | |
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| 81 | \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 |
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| 82 | \hypertarget{classepdf_bc0c171b6dafacd78d26263913b1d0c0}{ |
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| 83 | \hyperlink{classepdf}{epdf} $\ast$ \hyperlink{classepdf_bc0c171b6dafacd78d26263913b1d0c0}{marginal} (const \hyperlink{classRV}{RV} \&\hyperlink{classepdf_74da992e3f5d598da8850b646b79b9d9}{rv})} |
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| 84 | \label{classepdf_bc0c171b6dafacd78d26263913b1d0c0} |
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| 85 | |
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| 86 | \begin{CompactList}\small\item\em Return marginal density on the given \hyperlink{classRV}{RV}, the remainig rvs are intergrated out. \item\end{CompactList}\item |
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| 87 | \hypertarget{classepdf_ca0d32aabb4cbba347e0c37fe8607562}{ |
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| 88 | const \hyperlink{classRV}{RV} \& \hyperlink{classepdf_ca0d32aabb4cbba347e0c37fe8607562}{\_\-rv} () const } |
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| 89 | \label{classepdf_ca0d32aabb4cbba347e0c37fe8607562} |
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| 90 | |
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| 91 | \begin{CompactList}\small\item\em access function, possibly dangerous! \item\end{CompactList}\item |
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| 92 | \hypertarget{classepdf_7fb94ce90d1ac7077d29f7d6a6c3e0a5}{ |
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| 93 | void \hyperlink{classepdf_7fb94ce90d1ac7077d29f7d6a6c3e0a5}{\_\-renewrv} (const \hyperlink{classRV}{RV} \&in\_\-rv)} |
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| 94 | \label{classepdf_7fb94ce90d1ac7077d29f7d6a6c3e0a5} |
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| 95 | |
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| 96 | \begin{CompactList}\small\item\em modifier function - useful when copying epdfs \item\end{CompactList}\end{CompactItemize} |
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| 97 | \subsection*{Protected Attributes} |
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| 98 | \begin{CompactItemize} |
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| 99 | \item |
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| 100 | \hypertarget{classemix_cdc8f4e2a5e43595ac5450d8a7f9d1ab}{ |
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| 101 | vec \hyperlink{classemix_cdc8f4e2a5e43595ac5450d8a7f9d1ab}{w}} |
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| 102 | \label{classemix_cdc8f4e2a5e43595ac5450d8a7f9d1ab} |
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| 103 | |
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| 104 | \begin{CompactList}\small\item\em weights of the components \item\end{CompactList}\item |
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| 105 | \hypertarget{classemix_7155d827417b53fb6aa5cff1459e6eb4}{ |
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| 106 | Array$<$ \hyperlink{classepdf}{epdf} $\ast$ $>$ \hyperlink{classemix_7155d827417b53fb6aa5cff1459e6eb4}{Coms}} |
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| 107 | \label{classemix_7155d827417b53fb6aa5cff1459e6eb4} |
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| 108 | |
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| 109 | \begin{CompactList}\small\item\em Component (epdfs). \item\end{CompactList}\item |
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| 110 | \hypertarget{classemix_7d0d863e6066ee02947914ff06ac34e8}{ |
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| 111 | bool \hyperlink{classemix_7d0d863e6066ee02947914ff06ac34e8}{destroyComs}} |
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| 112 | \label{classemix_7d0d863e6066ee02947914ff06ac34e8} |
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| 113 | |
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| 114 | \begin{CompactList}\small\item\em Flag if owning Coms. \item\end{CompactList}\item |
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| 115 | \hypertarget{classepdf_74da992e3f5d598da8850b646b79b9d9}{ |
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| 116 | \hyperlink{classRV}{RV} \hyperlink{classepdf_74da992e3f5d598da8850b646b79b9d9}{rv}} |
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| 117 | \label{classepdf_74da992e3f5d598da8850b646b79b9d9} |
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| 118 | |
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| 119 | \begin{CompactList}\small\item\em Identified of the random variable. \item\end{CompactList}\end{CompactItemize} |
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| 120 | |
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| 121 | |
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| 122 | \subsection{Detailed Description} |
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| 123 | Mixture of epdfs. |
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| 124 | |
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| 125 | 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\/}, |
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| 126 | |
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| 127 | The documentation for this class was generated from the following files:\begin{CompactItemize} |
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| 128 | \item |
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| 129 | work/git/mixpp/bdm/stat/\hyperlink{emix_8h}{emix.h}\item |
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| 130 | work/git/mixpp/bdm/stat/emix.cpp\end{CompactItemize} |
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