我正在使用下面给出的代码绘制一组直方图，并想更改图中特定条的颜色。例如，想将 22 和 44 的红色条的颜色更改为橙色，同时保持其余颜色不变。请提供建议。
注意：解决方案提供于pgfplots：以不同方式对直方图中的单个列进行着色不起作用，因为我在 \addplot 下有一组坐标，而示例中它们只有单个坐标，易于操作。我想更改与组中一个坐标相对应的颜色。
\documentclass[10pt,journal,compsoc]{IEEEtran}
\usepackage{mathtools}
\usepackage{caption}
\usepackage{pgfplots}
\usepackage{hyperref}
\usepackage{subfig}
\usepackage{caption}
\usetikzlibrary{fit,matrix,positioning,
decorations.pathreplacing,calc,shapes,arrows,shadows,patterns}
\begin{document}
\begin{figure*}
\centering
\captionsetup{justification = centering}
\subfloat[xxx]{
\label{1}
\begin{tikzpicture}[scale = 1, transform shape]
\begin{axis}[
major x tick style = transparent,
ybar = 2*\pgflinewidth,
bar width=7pt,
ymajorgrids = true,
ylabel={yyy (\%)},
symbolic x coords={11, 22, 33, 44},
xtick=data,
scaled y ticks = false,
enlarge x limits=0.25,
ymin=85,
minor y tick num=5,
xlabel style={yshift=-.3cm},
ylabel style={yshift=-.3cm},
tick label style={font=\footnotesize},
legend style={at={(.5,-0.1)}, anchor=north, /tikz/every even column/.append style={column sep=.5cm}},
legend columns = -1,
]
\addplot[style = {fill=red, mark=none, postaction={pattern=dots}}, error bars/.cd, y dir=both, y explicit, error bar style ={thick}]
coordinates {
(11, 95.772418) +- (0.00477703, 0.00477703)
(22, 96.83437) +- (0.039005931, 0.039005931)
(33, 96.9428) +- (0.05470002, 0.05470002)
(44, 96.72381) +- (0.023826187, 0.023826187)};
\addplot[style = {fill=blue, mark=none, postaction={pattern=north east lines}}, error bars/.cd, y dir=both, y explicit, error bar style ={thick}]
coordinates {
(11, 97.615588) +- (0.036178026, 0.036178026)
(22, 96.77373) +- (0.045379505, 0.045379505)
(33, 97.61842) +- (0.036159489, 0.036159489)
(44, 96.64351) +- (0.044978336, 0.044978336)};
\addplot[style = {fill=green, mark=none, postaction={pattern=horizontal lines}}, error bars/.cd, y dir=both, y explicit, error bar style ={thick}]
coordinates {
(11, 98.856128) +- (0.031866164, 0.031866164)
(22, 99.00258) +- (0.026840445, 0.026840445)
(33, 98.02313) +- (0.057913644, 0.057913644)
(44, 98.30856) +- (0.048969882, 0.048969882)};
\addplot[style = {fill=yellow, mark=none, postaction={pattern=vertical lines}}, error bars/.cd, y dir=both, y explicit, error bar style ={thick}]
coordinates {
(11, 97.778428) +- (0.035212399, 0.035212399)
(22, 96.82722) +- (0.045398952, 0.045398952)
(33, 97.75243) +- (0.034266698, 0.034266698)
(44, 96.72982) +- (0.043016218, 0.043016218)};
\legend{pp, qq, rr, ss}
\end{axis}
\end{tikzpicture}
}
\end{figure*}
\end{document}
答案1
取决于你的严谨程度。如果你愿意作弊，你可以直接叠加这两个条。（如果不愿意，那就不可以 ;-)
\documentclass[10pt,journal,compsoc]{IEEEtran}
\usepackage{mathtools}
\usepackage{caption}
\usepackage{pgfplots}
\usepackage{hyperref}
\usepackage{subfig}
\usepackage{caption}
\usetikzlibrary{fit,matrix,positioning,
decorations.pathreplacing,calc,shapes,arrows,shadows,patterns}
\begin{document}
\begin{figure*}
\centering
\captionsetup{justification = centering}
\subfloat[xxx]{
\label{1}
\begin{tikzpicture}[scale = 1, transform shape]
\begin{axis}[
major x tick style = transparent,
ybar = 2*\pgflinewidth,
bar width=7pt,
ymajorgrids = true,
ylabel={yyy (\%)},
symbolic x coords={11, 22, 33, 44},
xtick=data,
scaled y ticks = false,
enlarge x limits=0.25,
ymin=85,
minor y tick num=5,
xlabel style={yshift=-.3cm},
ylabel style={yshift=-.3cm},
tick label style={font=\footnotesize},
legend style={at={(.5,-0.1)}, anchor=north, /tikz/every even column/.append style={column sep=.5cm}},
legend columns = -1,
]
\addplot[style = {fill=red, mark=none, postaction={pattern=dots}}, error bars/.cd, y dir=both, y explicit, error bar style ={thick}]
coordinates {
(11, 95.772418) +- (0.00477703, 0.00477703)
(22, 96.83437) +- (0.039005931, 0.039005931)
(33, 96.9428) +- (0.05470002, 0.05470002)
(44, 96.72381) +- (0.023826187, 0.023826187)};
\addplot[style = {fill=blue, mark=none, postaction={pattern=north east lines}}, error bars/.cd, y dir=both, y explicit, error bar style ={thick}]
coordinates {
(11, 97.615588) +- (0.036178026, 0.036178026)
(22, 96.77373) +- (0.045379505, 0.045379505)
(33, 97.61842) +- (0.036159489, 0.036159489)
(44, 96.64351) +- (0.044978336, 0.044978336)};
\addplot[style = {fill=green, mark=none, postaction={pattern=horizontal lines}}, error bars/.cd, y dir=both, y explicit, error bar style ={thick}]
coordinates {
(11, 98.856128) +- (0.031866164, 0.031866164)
(22, 99.00258) +- (0.026840445, 0.026840445)
(33, 98.02313) +- (0.057913644, 0.057913644)
(44, 98.30856) +- (0.048969882, 0.048969882)};
\addplot[style = {fill=yellow, mark=none, postaction={pattern=vertical lines}}, error bars/.cd, y dir=both, y explicit, error bar style ={thick}]
coordinates {
(11, 97.778428) +- (0.035212399, 0.035212399)
(22, 96.82722) +- (0.045398952, 0.045398952)
(33, 97.75243) +- (0.034266698, 0.034266698)
(44, 96.72982) +- (0.043016218, 0.043016218)};
\legend{pp, qq, rr, ss}
\addplot[style = {fill=orange,xshift=-31, mark=none, postaction={pattern=dots}}, error bars/.cd, y dir=both, y explicit, error bar style ={thick}]
coordinates {
(22, 96.83437) +- (0.039005931, 0.039005931)
(44, 96.72381) +- (0.023826187, 0.023826187)};
\end{axis}
\end{tikzpicture}
}
\end{figure*}
\end{document}
