![显示 y 条堆积图的最大值](https://linux22.com/image/308508/%E6%98%BE%E7%A4%BA%20y%20%E6%9D%A1%E5%A0%86%E7%A7%AF%E5%9B%BE%E7%9A%84%E6%9C%80%E5%A4%A7%E5%80%BC.png)
以下 MWE 生成 y 条堆积图:
\documentclass{standalone}
\usepackage{pgfplots}
\begin{document}
\begin{tikzpicture}
\begin{axis}[
ybar stacked,
enlargelimits=0.15,
xlabel={Number of cores},
xtick={12},
ylabel={Cores load (\%)},
ymin=0, ymax=100,
]
\addplot+[ybar, black, fill=red] plot coordinates { (12,3.53)};
\addplot+[ybar, black, fill=green!40] plot coordinates { (12,8.34)};
\addplot+[ybar, black, fill=blue] plot coordinates { (12,6.76)};
\addplot+[ybar, black, fill=cyan] plot coordinates { (12,4.6)};
\addplot+[ybar, black, fill=magenta] plot coordinates { (12,9.5)};
\addplot+[ybar, black, fill=yellow] plot coordinates { (12,14.45)};
\addplot+[ybar, black, fill=gray] plot coordinates { (12,26.12)};
\addplot+[ybar, black, fill=purple] plot coordinates { (12,8.45)};
\addplot+[ybar, black, fill=orange] plot coordinates { (12,9.75)};
\addplot+[ybar, black, fill=brown] plot coordinates { (12,3.18)};
\addplot+[ybar, black, fill=red!40] plot coordinates { (12,4.87)};
\addplot+[ybar, black, fill=green] plot coordinates { (12,0.46)};
\end{axis}
\end{tikzpicture}
\end{document}
一个条形图表示一个时间范围,分为 X 个子范围。为清楚起见,此示例仅显示条形图 12。每个子范围的值表示在此范围内所花费时间的百分比,因此子范围的总和为 100%。我想显示(在条形图顶部,或者可能在旋转的子范围内)子范围百分比中的最大值。我该如何实现?
答案1
一些评论
compat=1.12
是必不可少的,否则元数据将是累积值而不是真实值。- 也就是说,最上面的那个总是最大的,结果是 100%)
- 我不是说它是必要的。只是不知为何我不想去追究差异从何而来。
nodes near coords
是必不可少的,只要您想自己绘制/放置节点,则不是必需的。\pgfplotspointmetatransformed
范围从 0 到 1000。因此,检查它是否大于 999 可能表示最大的数据点。
\documentclass{standalone}
\usepackage{pgfplots}\pgfplotsset{compat=1.12}
\begin{document}
\begin{tikzpicture}
\begin{axis}[
ybar stacked,
enlargelimits=0.15,
xlabel={Number of cores},
xtick={12},
ylabel={Cores load (\%)},
ymin=0, ymax=100,
nodes near coords={
\ifdim\pgfplotspointmetatransformed pt>999pt
\kern50pt\pgfmathprintnumber{\pgfplotspointmeta}\%
\fi
}
]
\addplot+[ybar, black, fill=red] plot coordinates { (12,3.53)};
\addplot+[ybar, black, fill=green!40] plot coordinates { (12,8.34)};
\addplot+[ybar, black, fill=blue] plot coordinates { (12,6.76)};
\addplot+[ybar, black, fill=cyan] plot coordinates { (12,4.6)};
\addplot+[ybar, black, fill=magenta] plot coordinates { (12,9.5)};
\addplot+[ybar, black, fill=yellow] plot coordinates { (12,14.45)};
\addplot+[ybar, black, fill=gray] plot coordinates { (12,26.12)};
\addplot+[ybar, black, fill=purple] plot coordinates { (12,8.45)};
\addplot+[ybar, black, fill=orange] plot coordinates { (12,9.75)};
\addplot+[ybar, black, fill=brown] plot coordinates { (12,3.18)};
\addplot+[ybar, black, fill=red!40] plot coordinates { (12,4.87)};
\addplot+[ybar, black, fill=green] plot coordinates { (12,0.46)};
\end{axis}
\end{tikzpicture}
\end{document}