我试图将箱线图与实际点结合起来以显示分布。此外，用于点的标记取决于它所代表的治疗是积极的（标记为 x）还是中性的（标记为三角形）。
这是我的带有模拟数据的最小工作代码：
\documentclass[margin=1cm]{standalone}
\usepackage{pgfplots}
\pgfplotsset{compat=1.18}
\usepgfplotslibrary{statistics}
\begin{document}
\begin{tikzpicture}
\begin{axis}[
every y tick label/.append style={font=\footnotesize},
every x tick label/.append style={font=\footnotesize},
xmode=log,
yticklabel style={align=center},
ytick={1,2},
yticklabels={Diabetes, Cancer},
boxplot/box extend=0.48,
xlabel={CFU/day},
legend style={at={(0.5,-0.17)},anchor=north,legend cell align=left, draw=none},
%
scatter/classes={%
a={mark=triangle,draw=black},
b={mark=x,draw=blue}}]
%
%
\addplot+ [% AAD:
boxplot prepared={
lower whisker= 430000, lower quartile= 1126500015.5,
median= 10000000000,
upper quartile= 34000000000, upper whisker= 60000000000},
black, solid, thick, no marks] coordinates {};
%
\addplot[scatter,only marks,%
scatter src=explicit symbolic]%
table[y index=0, x index=1,meta=label] {
y x label
1 14500000000 a
1 51000000000 a
1 17000000000 a
1 210000000 a
1 4500000000 a
1 430000 a
1 400000000 a
1 4000000000 a
1 60000000000 b
1 50000000000 b
1 50000000000 b
1 1450000000 b
1 803000031 b
1 10000000000 b
1 18000000000 b
};
%
\addplot+ [% Cancer:
boxplot prepared={
lower whisker= 300000000, lower quartile= 8975000000,
median= 17650000000,
upper quartile= 26325000000, upper whisker= 35000000000},
black, solid, no marks] coordinates {};
%
\addplot[scatter,only marks,%
scatter src=explicit symbolic]%
table[y index=0, x index=1,meta=label] {
y x label
2 300000000 b
2 35000000000 b
2 15000000000 a
};
\legend{Positive, Neutral}
\end{axis}
\end{tikzpicture}
\end{document}
输出结果如下：
如您所见，图例很怪异。我希望图例仅显示划分x和的点triangle。我希望它忽略其中的箱线图。
答案1
我猜你正在寻找这样的东西：
（我擅自更改了标记的颜色和图例的位置，但您可以根据自己的意愿轻松更改）
为了得到这个结果，你需要改变\addplot宏的顺序，前两个是scatter plot，后两个是boxplot。它们之间是命令\legend：
\documentclass[margin=3mm]{standalone}
\usepackage{pgfplots}
\pgfplotsset{compat=1.18}
\usepgfplotslibrary{statistics}
\begin{document}
\begin{tikzpicture}
\begin{semilogxaxis}[
every tick label/.append style={font=\footnotesize},
ytick={1,2},
yticklabels={Diabetes, Cancer},
xlabel={CFU/day},
legend pos=outer north east,
%
scatter/classes={%
a={mark=triangle,draw=red},
b={mark=x,draw=blue}}]
%
\addplot[scatter, only marks,%
scatter src=explicit symbolic]%
table[y index=0, x index=1,meta=label] {
y x label
1 14500000000 a
1 51000000000 a
1 17000000000 a
1 210000000 a
1 4500000000 a
1 430000 a
1 400000000 a
1 4000000000 a
1 60000000000 b
1 50000000000 b
1 50000000000 b
1 1450000000 b
1 803000031 b
1 10000000000 b
1 18000000000 b
};
%
\addplot[scatter, only marks,%
scatter src=explicit symbolic]%
table[y index=0, x index=1, meta=label] {
y x label
2 300000000 b
2 35000000000 b
2 15000000000 a
};
\legend{Positive, Neutral}
%
\addplot[% AAD:
boxplot prepared={
lower whisker= 430000, lower quartile= 1126500015.5,
median= 10000000000,
upper quartile= 34000000000, upper whisker= 60000000000},
black, no marks] coordinates {};
\addplot[% Cancer:
boxplot prepared={
lower whisker = 300000000, lower quartile= 8975000000, median= 17650000000,
upper quartile= 26325000000, upper whisker = 35000000000},
black, no marks] coordinates {};
\end{semilogxaxis}
\end{tikzpicture}
\end{document}