pgfplots：隐藏图中的曲线

Question

有没有办法隐藏前两条曲线，只显示总数？

不幸的是，forget plot仅排除了在图例中列出的一条曲线。

\documentclass{standalone}

\RequirePackage{pgfplots}

\begin{document}

\begin{tikzpicture}
    \begin{axis}[stack plots=y,
    legend pos=outer north east,
    minor x tick num=1,
    minor y tick num=1,
    ymin=0,
    grid=both,
    ] 
        \addplot [forget plot, line width=0pt] coordinates {(0,1) (1,1) (2,2) (3,2)};  % HIDE from graph but use for Total
        \addplot [forget plot, line width=0pt] coordinates {(0,1) (1,1) (2,2) (3,2)};  % HIDE from graph but use for Total
        \addplot [line width=2pt, mark=*] coordinates {(0,1) (1,1) (2,2) (3,2)}; 

        \legend{Total}
    \end{axis} 
\end{tikzpicture}

\end{document}

即使如此line width=0pt，这些线条仍然清晰可见......

任何帮助都非常感谢。谢谢！

Answer 1

您可以使用draw=none：

\documentclass{standalone}

\RequirePackage{pgfplots}

\begin{document}

\begin{tikzpicture}
    \begin{axis}[stack plots=y,
    legend pos=outer north east,
    minor x tick num=1,
    minor y tick num=1,
    ymin=0,
    grid=both,
    ] 
        \addplot [forget plot, draw=none] coordinates {(0,1) (1,1) (2,2) (3,2)};  % HIDE from graph but use for Total
        \addplot [forget plot, draw=none] coordinates {(0,1) (1,1) (2,2) (3,2)};  % HIDE from graph but use for Total
        \addplot [line width=2pt, mark=*] coordinates {(0,1) (1,1) (2,2) (3,2)}; 

        \legend{Total}
    \end{axis} 
\end{tikzpicture}

\end{document}