\documentclass[12pt,a4paper,captions=tableabove, english]{article}
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\usepackage[english]{babel}
\usepackage{extarrows}
\usepackage{afterpage}
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%\usepackage{fullpage}
\usepackage[autostyle=true,german=quotes]{csquotes}
\usepackage[authordate15,maxcitenames=2,backend=biber]{biblatex-chicago}
\usepackage{graphicx}
\usepackage{fancyhdr}
\usepackage{makeidx}
\usepackage[dvipsnames]{xcolor}
\usepackage{hyperref}
\usepackage[markup=nocolor,deletedmarkup=xout]{changes}
\makeindex
\usepackage{tikz}
\usepackage{pgfplots}
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\usepackage{standalone}
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\usepackage{multicol}
\usepackage{footnote}
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\usepackage[]{blindtext}
\usepackage{listings}
\usepackage{color}
\usepackage{float}
\usepackage{stmaryrd}
\usepackage{mdframed}
\usepackage{sectsty}

\definecolor{uniaux}{RGB}{0,101,97}
\definecolor{SL}{RGB}{253,246,227}

\colorlet{shadecolor}{orange!20}


\sectionfont{\color{uniaux}}  % sets colour of sections
\subsectionfont{\color{uniaux}}  % sets colour of chapters
\subsubsectionfont{\color{uniaux}}  % sets colour of chapters

\usepackage{color,soul}
\setulcolor{green}

\lstset{literate=%
    {Ö}{{\"O}}1
    {Ä}{{\"A}}1
    {Ü}{{\"U}}1
    {ß}{{\ss}}1
    {ü}{{\"u}}1
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    {ö}{{\"o}}1
    {~}{{\textasciitilde}}1
}
\usepackage{caption}
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\DeclareCaptionFormat{listing}{\colorbox{cyan}{\parbox{\textwidth}{#1#2#3}}}
\captionsetup[lstlisting]{format=listing,labelfont=white,textfont=white}

\lstset{ %
  language=R,                     % the language of the code
  basicstyle=\footnotesize,       % the size of the fonts that are used for the code
  numbers=left,                   % where to put the line-numbers
  numberstyle=\tiny\color{gray},  % the style that is used for the line-numbers
  stepnumber=1,                   % the step between two line-numbers. If it's 1, each line
                                  % will be numbered
  numbersep=5pt,                  % how far the line-numbers are from the code
  backgroundcolor=\color{SL},  % choose the background color. You must add \usepackage{color}
  showspaces=false,               % show spaces adding particular underscores
  showstringspaces=false,         % underline spaces within strings
  showtabs=false,                 % show tabs within strings adding particular underscores
  frame=single,                   % adds a frame around the code
  rulecolor=\color{black},        % if not set, the frame-color may be changed on line-breaks within not-black text (e.g. commens (green here))
  tabsize=2,                      % sets default tabsize to 2 spaces
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  breaklines=true,                % sets automatic line breaking
  breakatwhitespace=false,        % sets if automatic breaks should only happen at whitespace
  title=\lstname,                 % show the filename of files included with \lstinputlisting;
                                  % also try caption instead of title
  keywordstyle=\color{blue},      % keyword style
  commentstyle=\color{purple},   % comment style
  stringstyle=\color{violet},      % string literal style
 %escapeinside={\%*}{*)},         % if you want to add a comment within your code
  morekeywords={*,...}            % if you want to add more keywords to the set
}

\DefineBibliographyStrings{english}{%
  andothers = {et al.},
}

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	%Kopfzeile rechts bzw. außen
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	\fancyhead[C]{\textsc{\textbf{\leftmark}}}
	%Linie oben
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	\setlength{\headsep}{13mm}
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	%Kopfzeile links bzw. innen
	%\fancyhead[LO,RE]{Universität}
	%Linie oben
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	%Kopfzeile rechts bzw. außen
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	\fancyhead[C]{\textsc{\textbf{Appendix (R Codes}})}
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	%Kopfzeile links bzw. innen
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	%Linie oben
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	%Kopfzeile links bzw. innen
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	%Kopfzeile rechts bzw. außen
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\usepackage{selinput}
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  germandbls={ß}
}
\usepackage{babel}
\usepackage{amsthm}
\usepackage{amsmath}
\allowdisplaybreaks

\usepackage{amssymb}
\usepackage{graphicx}
\usepackage{paralist}
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\usepackage{bbm}
\usepackage{fancybox}
\usepackage{framed}

%\headerfont{\cinzel}

\theoremstyle{definition}
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\newtheorem{bsp}[prop]{Example}
\newtheorem{fig}[prop]{Figure}
\newtheorem{satz}[prop]{Theorem}
\newtheorem{lem}[prop]{Lemma}
\newtheorem{kor}[prop]{Corollary}
%\newtheorem*{motiv}{Motivation}
\newtheorem{bem}[prop]{Remark}

\numberwithin{equation}{section}

\renewcommand{\sectionmark}[1]{}

\newcommand\IP{\mathbb{P}}


%SEMINAR%
\newcommand\IF{\mathbbm{1}}
\newcommand{\BIGOP}[1]{\mathop{\mathchoice%
		{\raise-0.22em\hbox{\huge $#1$}}%
		{\raise-0.05em\hbox{\Large $#1$}}{\hbox{\large $#1$}}{#1}}}
\newcommand{\bigtimes}{\BIGOP{\times}}
% nur fuer Bigboxplus andere Korrekturen
\newcommand{\BIGboxplus}{\mathop{\mathchoice%
		{\raise-0.35em\hbox{\huge $\boxplus$}}%
		{\raise-0.15em\hbox{\Large $\boxplus$}}{\hbox{\large $\boxplus$}}{\boxplus}}}


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\newcommand\ZZ{\mathrm{Z\kern-.3em\raise-0.5ex\hbox{Z}}}

\bibliography{Literatur}

\begin{document}

\textit{\underline{financial time series}}\index{financial time series}

\newpage

\pagestyle{ErsteSeite}
\addcontentsline{toc}{section}{\textsc{Index}}
\printindex
\end{document}