preamble.tex

% \documentclass[12pt, a4paper, titlepage]{article}
\usepackage[margin=1in]{geometry} 
\usepackage{pdflscape} % this with newcommand for landscape pages
\newcommand{\blandscape}{\begin{landscape}} %redefine landscape argument from pdflscape \begin{landscape} doesn't work in bookdown
\newcommand{\elandscape}{\end{landscape}}
\usepackage{float} % to allow you to put tables and figures in specific places
\usepackage{fancyhdr} % for short chapter names https://github.com/rstudio/bookdown/issues/360

% https://tex.stackexchange.com/questions/7276/table-caption-width
\usepackage[width = \textwidth, textfont = it]{caption}

% https://en.wikibooks.org/wiki/LaTeX/Footnotes_and_Margin_Notes
\makeatletter
\def\blfootnote{\xdef\@thefnmark{}\@footnotetext}
\makeatother


\frontmatter % page numbering starts at introduction
% \pagenumbering{roman}



% \usepackage{booktabs}
% \usepackage{longtable}
% 
% 
% \ifxetex
%   \usepackage{letltxmacro}
%   \setlength{\XeTeXLinkMargin}{1pt}
%   \LetLtxMacro\SavedIncludeGraphics\includegraphics
%   \def\includegraphics#1#{% #1 catches optional stuff (star/opt. arg.)
%     \IncludeGraphicsAux{#1}%
%   }%
%   \newcommand*{\IncludeGraphicsAux}[2]{%
%     \XeTeXLinkBox{%
%       \SavedIncludeGraphics#1{#2}%
%     }%
%   }%
% \fi

% \usepackage{fullpage}
% \usepackage{pdflscape}
% \usepackage[margin=1in]{geometry} %for marings
% \usepackage{setspace} % for double spacing
% \usepackage{float}
% \doublespacing
%\usepackage{newtxtext,newtxmath} % for times new roman

% \usepackage{makeidx} % make index https://bookdown.org/yihui/bookdown/latex-index.html
% \makeindex