\section{Min\+Max\+Scaler Class Reference} \label{classmlpack_1_1data_1_1MinMaxScaler}\index{Min\+Max\+Scaler@{Min\+Max\+Scaler}} A simple Min\+Max Scaler class. \subsection*{Public Member Functions} \begin{DoxyCompactItemize} \item \textbf{ Min\+Max\+Scaler} (const double min=0, const double max=1) \begin{DoxyCompactList}\small\item\em Default constructor. \end{DoxyCompactList}\item {\footnotesize template$<$typename Mat\+Type $>$ }\\void \textbf{ Fit} (const Mat\+Type \&input) \begin{DoxyCompactList}\small\item\em Function to fit features, to find out the min max and scale. \end{DoxyCompactList}\item {\footnotesize template$<$typename Mat\+Type $>$ }\\void \textbf{ Inverse\+Transform} (const Mat\+Type \&input, Mat\+Type \&output) \begin{DoxyCompactList}\small\item\em Function to retrieve original dataset. \end{DoxyCompactList}\item const arma\+::vec \& \textbf{ Item\+Max} () const \begin{DoxyCompactList}\small\item\em Get the Max row vector. \end{DoxyCompactList}\item const arma\+::vec \& \textbf{ Item\+Min} () const \begin{DoxyCompactList}\small\item\em Get the Min row vector. \end{DoxyCompactList}\item const arma\+::vec \& \textbf{ Scale} () const \begin{DoxyCompactList}\small\item\em Get the Scale row vector. \end{DoxyCompactList}\item double \textbf{ Scale\+Max} () const \begin{DoxyCompactList}\small\item\em Get the upper range parameter. \end{DoxyCompactList}\item double \textbf{ Scale\+Min} () const \begin{DoxyCompactList}\small\item\em Get the lower range parameter. \end{DoxyCompactList}\item {\footnotesize template$<$typename Archive $>$ }\\void \textbf{ serialize} (Archive \&ar, const unsigned int) \item {\footnotesize template$<$typename Mat\+Type $>$ }\\void \textbf{ Transform} (const Mat\+Type \&input, Mat\+Type \&output) \begin{DoxyCompactList}\small\item\em Function to scale features. \end{DoxyCompactList}\end{DoxyCompactItemize} \subsection{Detailed Description} A simple Min\+Max Scaler class. Given an input dataset this class helps you to scale each feature to a given range. [z = scale $\ast$ x + scale\+Min -\/ min(x) $\ast$ scale] [scale = (scale\+Max -\/ scale\+Min) / (max(x) -\/ min(x))] where scale\+Min, scale\+Max = feature\+\_\+range and min(x), max(x) are the minimum and maximum value of x respectively. \begin{DoxyCode} arma::mat input; Load(\textcolor{stringliteral}{"train.csv"}, input); arma::mat output; \textcolor{comment}{// Fit the features.} MinMaxScaler scale; scale.Fit(input) \textcolor{comment}{// Scale the features.} scale.Transform(input, output); \textcolor{comment}{// Retransform the input.} scale.InverseTransform(output, input); \end{DoxyCode} Definition at line 48 of file min\+\_\+max\+\_\+scaler.\+hpp. \subsection{Constructor \& Destructor Documentation} \mbox{\label{classmlpack_1_1data_1_1MinMaxScaler_acb30d2500651f0921263773ddd493252}} \index{mlpack\+::data\+::\+Min\+Max\+Scaler@{mlpack\+::data\+::\+Min\+Max\+Scaler}!Min\+Max\+Scaler@{Min\+Max\+Scaler}} \index{Min\+Max\+Scaler@{Min\+Max\+Scaler}!mlpack\+::data\+::\+Min\+Max\+Scaler@{mlpack\+::data\+::\+Min\+Max\+Scaler}} \subsubsection{Min\+Max\+Scaler()} {\footnotesize\ttfamily \textbf{ Min\+Max\+Scaler} (\begin{DoxyParamCaption}\item[{const double}]{min = {\ttfamily 0}, }\item[{const double}]{max = {\ttfamily 1} }\end{DoxyParamCaption})\hspace{0.3cm}{\ttfamily [inline]}} Default constructor. \begin{DoxyParams}{Parameters} {\em min} & Lower range of scaling. \\ \hline {\em max} & Upper range of scaling. \\ \hline \end{DoxyParams} Definition at line 57 of file min\+\_\+max\+\_\+scaler.\+hpp. \subsection{Member Function Documentation} \mbox{\label{classmlpack_1_1data_1_1MinMaxScaler_a0b68c1a39a21e56e10f5b9250b056244}} \index{mlpack\+::data\+::\+Min\+Max\+Scaler@{mlpack\+::data\+::\+Min\+Max\+Scaler}!Fit@{Fit}} \index{Fit@{Fit}!mlpack\+::data\+::\+Min\+Max\+Scaler@{mlpack\+::data\+::\+Min\+Max\+Scaler}} \subsubsection{Fit()} {\footnotesize\ttfamily void Fit (\begin{DoxyParamCaption}\item[{const Mat\+Type \&}]{input }\end{DoxyParamCaption})\hspace{0.3cm}{\ttfamily [inline]}} Function to fit features, to find out the min max and scale. \begin{DoxyParams}{Parameters} {\em input} & Dataset to fit. \\ \hline \end{DoxyParams} Definition at line 74 of file min\+\_\+max\+\_\+scaler.\+hpp. \mbox{\label{classmlpack_1_1data_1_1MinMaxScaler_afb0e67c6fbf5a527f63469bbbf07066c}} \index{mlpack\+::data\+::\+Min\+Max\+Scaler@{mlpack\+::data\+::\+Min\+Max\+Scaler}!Inverse\+Transform@{Inverse\+Transform}} \index{Inverse\+Transform@{Inverse\+Transform}!mlpack\+::data\+::\+Min\+Max\+Scaler@{mlpack\+::data\+::\+Min\+Max\+Scaler}} \subsubsection{Inverse\+Transform()} {\footnotesize\ttfamily void Inverse\+Transform (\begin{DoxyParamCaption}\item[{const Mat\+Type \&}]{input, }\item[{Mat\+Type \&}]{output }\end{DoxyParamCaption})\hspace{0.3cm}{\ttfamily [inline]}} Function to retrieve original dataset. \begin{DoxyParams}{Parameters} {\em input} & Scaled dataset. \\ \hline {\em output} & Output matrix with original Dataset. \\ \hline \end{DoxyParams} Definition at line 113 of file min\+\_\+max\+\_\+scaler.\+hpp. \mbox{\label{classmlpack_1_1data_1_1MinMaxScaler_a5ed43c216f23cf96c432216d6fc2a1c3}} \index{mlpack\+::data\+::\+Min\+Max\+Scaler@{mlpack\+::data\+::\+Min\+Max\+Scaler}!Item\+Max@{Item\+Max}} \index{Item\+Max@{Item\+Max}!mlpack\+::data\+::\+Min\+Max\+Scaler@{mlpack\+::data\+::\+Min\+Max\+Scaler}} \subsubsection{Item\+Max()} {\footnotesize\ttfamily const arma\+::vec\& Item\+Max (\begin{DoxyParamCaption}{ }\end{DoxyParamCaption}) const\hspace{0.3cm}{\ttfamily [inline]}} Get the Max row vector. Definition at line 122 of file min\+\_\+max\+\_\+scaler.\+hpp. \mbox{\label{classmlpack_1_1data_1_1MinMaxScaler_ae9ae591f227874f238c38d4cf070c6c8}} \index{mlpack\+::data\+::\+Min\+Max\+Scaler@{mlpack\+::data\+::\+Min\+Max\+Scaler}!Item\+Min@{Item\+Min}} \index{Item\+Min@{Item\+Min}!mlpack\+::data\+::\+Min\+Max\+Scaler@{mlpack\+::data\+::\+Min\+Max\+Scaler}} \subsubsection{Item\+Min()} {\footnotesize\ttfamily const arma\+::vec\& Item\+Min (\begin{DoxyParamCaption}{ }\end{DoxyParamCaption}) const\hspace{0.3cm}{\ttfamily [inline]}} Get the Min row vector. Definition at line 120 of file min\+\_\+max\+\_\+scaler.\+hpp. \mbox{\label{classmlpack_1_1data_1_1MinMaxScaler_a5adcafebd2c229793e57b7268c90a0fe}} \index{mlpack\+::data\+::\+Min\+Max\+Scaler@{mlpack\+::data\+::\+Min\+Max\+Scaler}!Scale@{Scale}} \index{Scale@{Scale}!mlpack\+::data\+::\+Min\+Max\+Scaler@{mlpack\+::data\+::\+Min\+Max\+Scaler}} \subsubsection{Scale()} {\footnotesize\ttfamily const arma\+::vec\& Scale (\begin{DoxyParamCaption}{ }\end{DoxyParamCaption}) const\hspace{0.3cm}{\ttfamily [inline]}} Get the Scale row vector. Definition at line 124 of file min\+\_\+max\+\_\+scaler.\+hpp. \mbox{\label{classmlpack_1_1data_1_1MinMaxScaler_a841ab6e52291099af1ea0d7f50b31f87}} \index{mlpack\+::data\+::\+Min\+Max\+Scaler@{mlpack\+::data\+::\+Min\+Max\+Scaler}!Scale\+Max@{Scale\+Max}} \index{Scale\+Max@{Scale\+Max}!mlpack\+::data\+::\+Min\+Max\+Scaler@{mlpack\+::data\+::\+Min\+Max\+Scaler}} \subsubsection{Scale\+Max()} {\footnotesize\ttfamily double Scale\+Max (\begin{DoxyParamCaption}{ }\end{DoxyParamCaption}) const\hspace{0.3cm}{\ttfamily [inline]}} Get the upper range parameter. Definition at line 126 of file min\+\_\+max\+\_\+scaler.\+hpp. \mbox{\label{classmlpack_1_1data_1_1MinMaxScaler_a478b195e13c72fe1a667f93dfbf5b613}} \index{mlpack\+::data\+::\+Min\+Max\+Scaler@{mlpack\+::data\+::\+Min\+Max\+Scaler}!Scale\+Min@{Scale\+Min}} \index{Scale\+Min@{Scale\+Min}!mlpack\+::data\+::\+Min\+Max\+Scaler@{mlpack\+::data\+::\+Min\+Max\+Scaler}} \subsubsection{Scale\+Min()} {\footnotesize\ttfamily double Scale\+Min (\begin{DoxyParamCaption}{ }\end{DoxyParamCaption}) const\hspace{0.3cm}{\ttfamily [inline]}} Get the lower range parameter. Definition at line 128 of file min\+\_\+max\+\_\+scaler.\+hpp. \mbox{\label{classmlpack_1_1data_1_1MinMaxScaler_af0dd9205158ccf7bcfcd8ff81f79c927}} \index{mlpack\+::data\+::\+Min\+Max\+Scaler@{mlpack\+::data\+::\+Min\+Max\+Scaler}!serialize@{serialize}} \index{serialize@{serialize}!mlpack\+::data\+::\+Min\+Max\+Scaler@{mlpack\+::data\+::\+Min\+Max\+Scaler}} \subsubsection{serialize()} {\footnotesize\ttfamily void serialize (\begin{DoxyParamCaption}\item[{Archive \&}]{ar, }\item[{const unsigned}]{int }\end{DoxyParamCaption})\hspace{0.3cm}{\ttfamily [inline]}} Definition at line 131 of file min\+\_\+max\+\_\+scaler.\+hpp. \mbox{\label{classmlpack_1_1data_1_1MinMaxScaler_a7bc470a1e097f5b0aaf2396691432b3f}} \index{mlpack\+::data\+::\+Min\+Max\+Scaler@{mlpack\+::data\+::\+Min\+Max\+Scaler}!Transform@{Transform}} \index{Transform@{Transform}!mlpack\+::data\+::\+Min\+Max\+Scaler@{mlpack\+::data\+::\+Min\+Max\+Scaler}} \subsubsection{Transform()} {\footnotesize\ttfamily void Transform (\begin{DoxyParamCaption}\item[{const Mat\+Type \&}]{input, }\item[{Mat\+Type \&}]{output }\end{DoxyParamCaption})\hspace{0.3cm}{\ttfamily [inline]}} Function to scale features. \begin{DoxyParams}{Parameters} {\em input} & Dataset to scale features. \\ \hline {\em output} & Output matrix with scaled features. \\ \hline \end{DoxyParams} Definition at line 95 of file min\+\_\+max\+\_\+scaler.\+hpp. The documentation for this class was generated from the following file\+:\begin{DoxyCompactItemize} \item /var/www/mlpack.\+ratml.\+org/mlpack.\+org/\+\_\+src/mlpack-\/git/src/mlpack/core/data/scaler\+\_\+methods/\textbf{ min\+\_\+max\+\_\+scaler.\+hpp}\end{DoxyCompactItemize}