How to avoid the line break in my column-headings? - latex

Question

I want to create a table with (at least) 6 columns. Right now, I automatically get a line break after 4 columns and i don't know how to avoid it.
I thought I'd already have my solution with /resizebox, but obviously it doesn't change anything.
\begin{table}[htb]
\caption{Evaluationstabelle}
\resizebox{\textwidth}{!}{%
\begin{tabular}{cccc}\toprule
\textbf{Anzahl Features} &\textbf{Entfernte Features} &\textbf{Filter} &\textbf{Precision} &\textbf{Recall} &\textbf{F-Score} \\
\midrule
08.05. & Ausarbeitung & Formuliere & Bsp & ok & shit \\[20pt]
\bottomrule
\end{tabular}
}
\end{table}
This is how it looks right now:
But I'd want all Columns in one line. If it doesn't fit, maybe by reducing the font size or something.

Answer 1

Whatever you do, don't use \resizebox for elements that contain text, see https://tex.stackexchange.com/questions/425453/why-not-scale-elements-that-contain-text for more details.
One possibility would be to use a tabularx and let latex decide on the best columns widths and linebreaks. In case this is not enough to fit your table in your available textwidth, this can be combined with a smaller font (commented in the code below)
\documentclass{article}
\usepackage{caption}
\usepackage{geometry}
\usepackage{array}
\usepackage{tabularx}
\usepackage{booktabs}
\usepackage{makecell}
\renewcommand\theadfont{\normalfont\bfseries}
\renewcommand\theadalign{YY}
\newcolumntype{Y}{>{\centering\arraybackslash}X}
\begin{document}
\begin{table}[htbp]
\caption{Evaluationstabelle}
%\small
\begin{tabularx}{\linewidth}{#{}YYYYYY#{}}
\toprule
\thead{Anzahl Features} & \thead{Entfernte Features} &\thead{Filter} &\thead{Precision} & \thead{Recall} & \thead{F-Score}\\
\midrule
08.05. & Ausarbeitung & Formuliere & Bsp & ok & test\\
\bottomrule
\end{tabularx}
\end{table}
\end{document}