Layers.tex

Layered grammar
\begin{frame}
Layered grammar defines a plot as the combination of

 A default data set and a setting of mappings from variables to aesthetics
 One or more layers
 One scale for each aesthetic mapping
 A coordinate system
 The faceting specification
\end{frame}
%============================================================================ %
\begin{frame}
Layers
Layers are responsible for creating the objects on the plot. Layers are composed of 4 parts
1) Data / aesthetic mapping
2) A statistical transformation (stat)
3) A geometric object (geom)
4) Position adjustment
\end{frame}
%============================================================================== %
\begin{frame}
\frametitle{Inbuilt Data Sets}
\begin{itemize}
\item diamonds.csv	
\item meat.csv	
\item movies.csv	
\item mtcars.csv	
\item pageviews.csv
\end{itemize}

\end{frame}
%=============================================================================== %