Hab eine Lösung gefunden: <pre>\documentclass[11pt,a4paper]{article} \documentclass[11pt,a4paper]{article} \usepackage{pgfplots} \begin{document} \begin{tikzpicture} \begin{axis}[ domain=-50:50, xmin=-50, xmax=50, ymin=0, ymax=1, samples=100; axis y line=center, axis x line=middle, xlabel={net}, ylabel={y}, ] \addplot+[mark=none, red, domain=-50:0] {0}; \addplot+[mark=none, red, domain= 0:50] {1}; \end{axis} \end{tikzpicture} \end{document}</pre> \end{document}

Hab eine Lösung gefunden: <pre>\documentclass[11pt,a4paper]{article} \usepackage{pgfplots} \begin{document} \begin{tikzpicture} \begin{axis}[ domain=-50:50, xmin=-50, xmax=50, ymin=0, ymax=1, samples=100; axis y line=center, axis x line=middle, xlabel={net}, ylabel={y}, ] \addplot+[mark=none, red, domain=-50:0] {0}; \addplot+[mark=none, red, domain= 0:50] {1}; \end{axis} \end{tikzpicture} \end{document}</pre>