64 lines
2.8 KiB
TeX
64 lines
2.8 KiB
TeX
\documentclass[12pt,a4paper,pdftex]{exam}
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\newcommand{\exercisetopic}{Plotting}
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\newcommand{\exercisenum}{X}
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\newcommand{\exercisedate}{December 14th, 2020}
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\input{../../exercisesheader}
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\firstpagefooter{Prof. Dr. Jan Benda}{}{jan.benda@uni-tuebingen.de}
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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\begin{document}
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\input{../../exercisestitle}
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\input{instructions}
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\begin{questions}
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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\question \qt{Graphical display of behavioral data.} In this task
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you will use the MATLAB plotting system to display different
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aspects of experimental data.
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In the accompanying zip file (``experiment.zip'') you find the
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results of an (hypothetical) behavioral experiment. Animals have
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been trained in a number of ``sessions'' in a two-alternative-forced
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choice task. The results of each session and each subject are stored
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in separate ``.mat'' files that are named according to the pattern
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\verb+Animal_{id}_Session_{id}.mat+. Each of these mat files contains
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three variables \verb+performance, perf_std, trials, tasks+ which list
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the subjects average performance, the standard deviation, the number
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of completed trials, and the tasks, respectively.
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As a first step accustom yourself with the data structure and open a
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single file to understand what is stored.
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Solve the assignments below in separate
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functions. Create a script that controls the analysis. Try to
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use as little ``hardcode'' as possible.
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All plots must be properly labeled, use a font size of 10\,pt for
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axis labels and a font size of 8\,pt for tick-labels and
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legends. Single-panel figures should have the paper size of 7.5 by
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7.5\,cm, multi-panel figures, may use a width of 17.5\,cm and a height
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of 15\,cm. Save the figures in the pdf format.
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\begin{parts}
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\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
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a mat file.
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\part{} Use the \verb+dir+ function to find out how many sessions have been recorded for
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each subject. Plot the results in a bar plot, adhere to the instructions above and save the figure.
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\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.
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\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.
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\end{parts}
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%\begin{solution}
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% \lstinputlisting{mlestd.m}
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% \includegraphics[width=1\textwidth]{mlestd}\\
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% \end{solution}
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\end{questions}
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\end{document}
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