<html><head><meta name="color-scheme" content="light dark"></head><body><pre style="word-wrap: break-word; white-space: pre-wrap;">\documentclass[12pt,a4paper,pdftex]{exam}

\usepackage[german]{babel}
\usepackage{pslatex}
\usepackage[mediumspace,mediumqspace]{SIunits}      % \ohm, \micro
\usepackage{xcolor}
\usepackage{graphicx}
\usepackage[breaklinks=true,bookmarks=true,bookmarksopen=true,pdfpagemode=UseNone,pdfstartview=FitH,colorlinks=true,citecolor=blue]{hyperref}

%%%%% layout %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\usepackage[left=20mm,right=20mm,top=25mm,bottom=25mm]{geometry}
\pagestyle{headandfoot}
\ifprintanswers
\newcommand{\stitle}{: Solutions}
\else
\newcommand{\stitle}{}
\fi
\header{{\bfseries\large Exercise 7\stitle}}{{\bfseries\large Plotting}}{{\bfseries\large November 20, 2019}}
\firstpagefooter{Dr. Jan Grewe}{Phone: 29 74588}{Email:
jan.grewe@uni-tuebingen.de}
\runningfooter{}{\thepage}{}

\setlength{\baselineskip}{15pt}
\setlength{\parindent}{0.0cm}
\setlength{\parskip}{0.3cm}
\renewcommand{\baselinestretch}{1.15}

%%%%% listings %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\usepackage{listings}
\lstset{
  language=Matlab,
  basicstyle=\ttfamily\footnotesize,
  numbers=left,
  numberstyle=\tiny,
  title=\lstname,
  showstringspaces=false,
  commentstyle=\itshape\color{darkgray},
  breaklines=true,
  breakautoindent=true,
  columns=flexible,
  frame=single,
  xleftmargin=1em,
  xrightmargin=1em,
  aboveskip=10pt
}

%%%%% math stuff: %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\usepackage{amsmath}
\usepackage{amssymb}
\usepackage{bm} 
\usepackage{dsfont}
\newcommand{\naZ}{\mathds{N}}
\newcommand{\gaZ}{\mathds{Z}}
\newcommand{\raZ}{\mathds{Q}}
\newcommand{\reZ}{\mathds{R}}
\newcommand{\reZp}{\mathds{R^+}}
\newcommand{\reZpN}{\mathds{R^+_0}}
\newcommand{\koZ}{\mathds{C}}

%%%%% page breaks %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\newcommand{\continue}{\ifprintanswers%
\else
\vfill\hspace*{\fill}$\rightarrow$\newpage%
\fi}
\newcommand{\continuepage}{\ifprintanswers%
\newpage
\else
\vfill\hspace*{\fill}$\rightarrow$\newpage%
\fi}
\newcommand{\newsolutionpage}{\ifprintanswers%
\newpage%
\else
\fi}

%%%%% new commands %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\newcommand{\qt}[1]{\textbf{#1}\\}
\newcommand{\pref}[1]{(\ref{#1})}
\newcommand{\extra}{--- Zusatzaufgabe ---\ \mbox{}}
\newcommand{\code}[1]{\texttt{#1}}


%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\begin{document}

\input{instructions}

\begin{questions}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  \question \qt{Graphical display of behavioral data.}  In this task
  you will use the MATLAB plotting system to display different
  aspects of experimental data.

  In the accompanying zip file (``experiment.zip'') you find the
  results of an (hypothetical) behavioral experiment. Animals have
  been trained in a number of ``sessions'' in a two-alternative-forced
  choice task. The results of each session and each subject are stored
  in separate ``.mat'' files that are named according to the pattern
  \verb+Animal_{id}_Session_{id}.mat+. Each of these mat files contains
  three variables \verb+performance, perf_std, trials, tasks+ which list
  the subjects average performance, the standard deviation, the number
  of completed trials, and the tasks, respectively.

  As a first step accustom yourself with the data structure and open a
  single file to understand what is stored.

  Solve the assignments below in separate
  functions. Create a script that controls the analysis. Try to
  use as little ``hardcode'' as possible.

  All plots must be properly labeled, use a font size of 10\,pt for
  axis labels and a font size of 8\,pt for tick-labels and
  legends. Single-panel figures should have the paper size of 7.5 by
  7.5\,cm, multi-panel figures, may use a width of 17.5\,cm and a height
  of 15\,cm. Save the figures in the pdf format.

  \begin{parts}
    \part{} Find out the ids of the used subjects (you will need this information later). Use the \verb+dir+ function to get the name of
    a mat file.
    \part{} Use the \verb+dir+ function to find out how many sessions have been recorded for
    each subject. Plot the results in a bar plot, adhere to the instructions above and save the figure.
    \part{} Each animal has been tested in the same tasks. Create a figure which plots each subject's performance as a function of the session number. The figure is supposed to display the three tasks in three subplots. Within each subplot plot the average performance and the performance error.
    \part{} Not every subject solved the same number of trials. Collect for each subject and each task the total number of trials and plot the data in form of a stacked bar plot. That is, the figure shows a stacked bar for each subject.
  \end{parts}
%\begin{solution}
%  \lstinputlisting{mlestd.m}
%  \includegraphics[width=1\textwidth]{mlestd}\\
% \end{solution}


\end{questions}

\end{document}
</pre></body></html>