[Tex/LaTex] Scrbook headings style

classicthesiskoma-scriptscrbook

I am trying to simplify the heading styles of the scrbook-class for use in my thesis, but am unable to find a way to stop the headings from being underlined and chapters being marked by their numbers. Here is the class-specification I am using:

\documentclass[
12pt,
a4paper,
oneside,
headinclude,
footinclude,
headnosepline,
BCOR5mm,
]{scrbook}

Below is an example of the current output. What I essentially want to achieve is get rid of the line underneath the chapter title, and the number to the right.

Scrbook Example

Any thoughts on doing this would be greatly appreciated.

Added MWE:

main.tex

\documentclass[
12pt,
a4paper,
oneside,
headinclude,
footinclude,
headnosepline,
BCOR5mm,
]{scrbook}
\input{structure.tex}
\hyphenation{Fortran hy-phen-ation}

\begin{document}

\makeatletter
\begin{titlepage}
\pagenumbering{gobble}
\thispagestyle{empty}
\title{Title}
\author{Author}
\date{Spring \the\year}
\end{titlepage}
\makeatother

\newpage\pagestyle{scrheadings}\pagenumbering{Roman}
\chapter*{Contents}\singlespacing
\tableofcontents
\onehalfspacing
\pagestyle{plain}
\newpage\chapter{Introduction} \label{part:Introduction}
\end{document}

structure.tex

\usepackage[parts,beramono,eulermath,pdfspacing,dottedtoc]{classicthesis}
\usepackage[english]{babel}
\usepackage[round, longnamesfirst]{natbib}
\setcitestyle{aysep={}}
\bibliographystyle{plainnat}
\setcitestyle{notesep={: }}

\setlength{\parindent}{0em}
\setlength{\parskip}{1em}
\renewcommand{\baselinestretch}{1.3}
\usepackage{titlesec}
\titlespacing\section{0pt}{12pt plus 4pt minus 2pt}{0pt plus 2pt minus 2pt}
\titlespacing\subsection{0pt}{12pt plus 4pt minus 2pt}{0pt plus 2pt minus 2pt}
\titlespacing\subsubsection{0pt}{12pt plus 4pt minus 2pt}{0pt plus 2pt minus 2pt}
\titlespacing*{\paragraph} {0pt}{3.25ex plus 1ex minus .2ex}{1em}
\titlespacing*{\subparagraph} {\parindent}{3.25ex plus 1ex minus .2ex}{1em}

\usepackage{geometry}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage{graphicx}
\usepackage{tikz}
\usetikzlibrary{arrows}
\usepackage{grffile}
\usepackage{pgfplots}
\usepackage{gnuplottex}%[miktex]%[shell]
\usepackage{pgfplotstable}
\pgfplotstableset{col sep = comma}
\pgfplotsset{width=\textwidth,compat=1.9}
\usetikzlibrary{pgfplots.groupplots}
\usepackage{filecontents}
\graphicspath{{Figures/}}
\usepackage{enumitem}
\usepackage{subfig}
\usepackage{amsmath,amssymb,amsthm}
\makeatletter
\def\thmhead@plain#1#2#3{%
  \thmname{#1}\thmnumber{\@ifnotempty{#1}{ }\@upn{#2}}%
  \thmnote{: {\the\thm@notefont#3}}}
\let\thmhead\thmhead@plain
\makeatother
\usepackage{varioref}
\usepackage{times}
\usepackage{chngpage}
\usepackage{tabulary}
\usepackage{rotating}
\usepackage{tabularx}
\usepackage{placeins}
\usepackage{float}
\usepackage{floatpag}
\usepackage{booktabs}
\usepackage{multirow}
\usepackage{caption}
\usepackage{setspace}
\usepackage[flushleft]{threeparttable}
\usepackage[normalem]{ulem}
\newcommand{\msout}[1]{\text{\sout{\ensuremath{#1}}}}
\usepackage{chronology}
\usepackage{easy-todo}
\input{PgfplotNan.tex}
\usepackage{titletoc}
\makeatletter
\renewcommand\tableofcontents{%
    \@starttoc{toc}%
}
\makeatother
\usepackage{setspace}
\setcounter{secnumdepth}{2}
\setcounter{tocdepth}{2}

\usepackage{amsfonts}
\usepackage{datagloss}
\selectcolormodel{gray}

\newenvironment{blockquote}{%
  \par%
  \em
  \medskip
  \leftskip=4em\rightskip=2em%
  \noindent\ignorespaces}{%
  \par\medskip}

\makeatletter
\pgfplotsset{
    every axis x label/.append style={
        alias=current axis xlabel
    },
    legend pos/outer south/.style={
        /pgfplots/legend style={
            at={%
                (%
                \@ifundefined{pgf@sh@ns@current axis xlabel}%
                {xticklabel cs:0.5}%
                {current axis xlabel.south}%
                )%
            },
            anchor=north
        }
    }
}
\makeatother

\newlength\figureheight
\newlength\figurewidth

\pgfplotscreateplotcyclelist{black-white-mark}{%
    solid, every mark/.append style={solid, fill=gray}, mark=*\\%
    dotted, every mark/.append style={solid, fill=gray}, mark=square*\\%
    densely dotted, every mark/.append style={solid, fill=gray}, mark=otimes*\\%
    loosely dotted, every mark/.append style={solid, fill=gray}, mark=triangle*\\%
    dashed, every mark/.append style={solid, fill=gray},mark=diamond*\\%
    loosely dashed, every mark/.append style={solid, fill=gray},mark=*\\%
    densely dashed, every mark/.append style={solid, fill=gray},mark=square*\\%
    dashdotted, every mark/.append style={solid, fill=gray},mark=otimes*\\%
    dasdotdotted, every mark/.append style={solid},mark=star\\%
    densely dashdotted,every mark/.append style={solid, fill=gray},mark=diamond*\\%
}
\pgfplotscreateplotcyclelist{black-white-nomark}{%
    solid\\%
    dotted\\%
    densely dotted\\%
    loosely dotted\\%
    dashed\\%
    loosely dashed\\%
    densely dashed\\%
    dashdotted\\%
    dasdotdotted\\%
    densely dashdotted\\%
}
\newcommand{\chartstyle}{
    /pgf/number format/.cd,
    use comma,
    1000 sep={},
    ymajorgrids=true,
    grid style=dashed,
    % legend style={at={(0,0)}, anchor=north east, align=left}, % Lower left corner
    legend pos=outer south, % Below
    % legend pos=north east, % Top right corner
    cycle list name=black-white-nomark,
}
\newcommand{\nochartstyle}{
    /pgf/number format/.cd,
    use comma,
    1000 sep={},
    ymajorgrids=false,
    grid style=dashed,
    % legend style={at={(0,0)}, anchor=north east, align=left}, % Lower left corner
    legend pos=outer south, % Below
    % legend pos=north east, % Top right corner
    cycle list name=black-white-nomark,
    xlabel={},
    xticklabels={,,}
    ylabel={},
    yticklabels={,,},
    axis y line*=left,
    scaled y ticks = false
}

\theoremstyle{definition}
\newtheorem{definition}{Definition}

\theoremstyle{plain}
\newtheorem{theorem}{Theorem}

\theoremstyle{remark}
\newtheorem*{remark}{Remark}

\theoremstyle{plain}
\newtheorem{hyp}{Hypothesis} 
\newtheorem{subhyp}{Hypothesis}[hyp]

\hypersetup{
colorlinks=true, breaklinks=true, bookmarks=true,bookmarksnumbered,
urlcolor=black, linkcolor=black, citecolor=black,
pdftitle={},
pdfauthor={\textcopyright},
pdfsubject={},
pdfkeywords={},
pdfcreator={pdfLaTeX},
pdfproducer={LaTeX with hyperref and ClassicThesis}
}

Best Answer

As per the comments to the question, removing the titlesec and classicthesis packages solved the problem. In retrospect, it is advisable to choose a complete class earlier, like the suggested KOMA-script, as this will save time with the final product - as opposed to hacking together solutions along the way.

As it happened, I did not have the time to switch classes at the point I was with writing and rewriting content, as well as the formatting which was already much in place, so I went with the suggested solution; and it produced an acceptable final product.

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