The very basic LaTeX example/template file that the Journal of Computational and Graphical Statistics provides (as of 2015-09-02)
\documentclass[12pt]{article}
\usepackage{amsmath}
\usepackage{graphicx,psfrag,epsf}
\usepackage{enumerate}
\usepackage{natbib}
\newcommand{\blind}{0}
\addtolength{\oddsidemargin}{-.75in}%
\addtolength{\evensidemargin}{-.75in}%
\addtolength{\textwidth}{1.5in}%
\addtolength{\textheight}{1.3in}%
\addtolength{\topmargin}{-.8in}%
\begin{document}
%\bibliographystyle{natbib}
\def\spacingset#1{\renewcommand{\baselinestretch}%
{#1}\small\normalsize} \spacingset{1}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\if0\blind
{
\title{\bf Title}
\author{Author 1\thanks{
The authors gratefully acknowledge}\hspace{.2cm}\\
Department of YYY, University of XXX\\
and \\
Author 2 \\
Department of ZZZ, University of WWW}
\maketitle
} \fi
\if1\blind
{
\bigskip
\bigskip
\bigskip
\begin{center}
{\LARGE\bf Title}
\end{center}
\medskip
} \fi
\bigskip
\begin{abstract}
Abstrct.
\end{abstract}
\noindent%
{\it Keywords:} 7 or fewer keywords
\spacingset{1.45}
\section{Introduction}
\label{sec:intro}
Body of paper.
\section{Methods}
\label{sec:meth}
\section{Verifications}
\label{sec:verify}
\section{Conclusion}
\label{sec:conc}
\bigskip
\begin{center}
{\large\bf SUPPLEMENTAL MATERIALS}
\end{center}
\begin{description}
\item[Title:] Brief description. (file type)
\item[R-package for MYNEW routine:] R-package ÒMYNEWÓ containing code to perform the diagnostic methods described in the article. The package also contains all datasets used as examples in the article. (GNU zipped tar file)
\item[HIV data set:] Data set used in the illustration of MYNEW method in Section~ 3.2. (.txt file)
\end{description}
\begin{thebibliography}{}
\bibitem[Azzalini(2005)]{azza:05}
Azzalini, A. (2005).
\newblock The skew-normal distribution and related multivariate families.
\newblock \emph{Scandinavian Journal of Statistics} \textbf{32}, 159--188.
\end{thebibliography}{}
\end{document}