Basic LaTeX preamble, especially for Rnoweb files.

preamble.tex

\documentclass{article}

\usepackage{graphicx,hyperref,amsmath,natbib,bm,url}          % Common packages
\usepackage[australian]{babel}                                % Ascending date format
\usepackage[a4paper,text={16.5cm,25.2cm},centering]{geometry} % Document size
\usepackage[compact,small]{titlesec}                          % Title spacing 
\setlength{\parskip}{1.2ex}                                   % Paragraph spacing
\setlength{\parindent}{0em}                                   % Paragraph indentation
\clubpenalty = 10000                                          % Prevent orphans
\widowpenalty = 10000                                         % Prevent widows
\usepackage{kpfonts}                                          % Better fonts
\usepackage[T1]{fontenc}                    
\usepackage{booktabs,dcolumn}                                 % R xtable dependencies
\setlength\fboxsep{5mm}                                       % Knitr chunk padding

\begin{document}
\title{}
\author{Spencer Boucher}
\maketitle