On page 858 the manual mentioned the option visualize as smooth cycle for the \datavisualization[]{} command.
MWE:
\documentclass{scrartcl}
\usepackage{tikz}
\usetikzlibrary{datavisualization.formats.functions}
\begin{document}
\begin{tikzpicture}
\datavisualization[
scientific axes,
visualize as smooth cycle
]
data {
x, y
0, 1
1, 2
};
\end{tikzpicture}
\end{document}
It seems that the option istn't implemented. Is it a typo?

datavisualizationhave a visualizeras scatter, I would to like an additional visualizeras circlewhich works equal to theas scatter. Thank you in advance! – Su-47 Jan 12 '20 at 13:36visualize as smooth cyclekey may not be the most useful key to have.visualize as circlealready exists, see e.g. the example on p. 929 of the manual v3.1.5. I will see what I can do with regards to circuitiz, which I hardly ever use. I want to avoid reporting something that experts have already resolved. – Jan 12 '20 at 15:45visualize as circle. Don't know why I didn't found it earlier. Let me know if my wish for theCircuiTikZfructify. Anyway a lot of thanks for your effort and time! If you have time, please look at this. – Su-47 Jan 12 '20 at 16:37