从下面的代码中，我想让情节看起来像这样：
我怎样才能做到这一点：
代码
\documentclass{article}
\usepackage{pgfplots}
\usetikzlibrary{
pgfplots.fillbetween,
}
\pgfplotsset{
compat=newest,
/tikz/Node/.style={
circle,
draw=white,
},
/tikz/Label/.style={
fill=white,
fill opacity=0.5,
text opacity=1,
},
}
\pgfkeys{/pgf/number format/set thousands separator = }
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\end{filecontents*}
\begin{document}
\begin{figure}
\begin{tikzpicture}
\colorlet{dark orange}{orange!50!black}
\colorlet{dark green}{green!75!black}
\colorlet{dark red}{red!75!black}
\colorlet{light red}{red!25}
\begin{axis}[width = 7.5cm, height = 7cm,
xmin=100,
xmax=3000,
ymax=5,
ymin=-40,
xtick={100,500,1000,1500,2000,2500,3000},
grid=both,
smooth,
no markers,
table/x index = 0,
table/col sep=comma,
]
\addplot [very thick,dark orange] table [y index = 1] {data_1.txt};
\addplot [very thick,dark green] table [y index = 2] {data_1.txt};
\end{axis}
\end{tikzpicture}
\end{figure}
\end{document}
谢谢！
答案1
例如添加
\fill [red, opacity=0.7] (100,0) rectangle (3000,5);
\fill [black, opacity=0.2] (100,0) rectangle (3000,-10);
在 s之前\addplot。
pgfplots注意：如果您的版本不是太旧（>= 1.11），则此方法有效，因为您已设置compat=newest。如果您未compat设置为 1.11 或更高版本，则必须在坐标前面加上axis cs:，例如(axis cs:100,0)。