我正在使用 制作双条形图（方向相反）pgfplots。我有非常小的数字，绘制时条形的长度非常小。我想对 x 轴进行对数缩放，为此我使用了semilogxaxis，这就是出错的地方。
以下是示例：
\documentclass{standalone}
\usepackage{pgfplots}
\begin{document}
\begin{tikzpicture}
\begin{axis}[
name=like,
scale only axis,
xbar, xmin=0, xmax=1, %xbar=2pt,
xlabel={Percentage Relative Error$_2$},
width=5cm, height= 8cm,
ytick={0.2, 0.4, 0.6, 0.8, 1},
yticklabels={sa,safda,afa,afa,af},
y tick label style={text width=2cm,align=center},
axis x line=left,
axis y line=none,
clip=false
]
%\addplot[green,fill=green] coordinates {
\addplot[purple, fill=purple]
coordinates {
(0.0010015,1)
(0.000542511,2)
(0.00599,3)
(0.000279,4)
(0.05813,5)
(0.005315, 6)
(0.80101, 7)};
\node[xshift=-1.5cm,align=center] at (axis cs:0,7) {$a_{\phi}$};
\node[xshift=-1.5cm,align=center] at (axis cs:0,6) {$b_{\phi}$};
\node[xshift=-1.5cm,align=center] at (axis cs:0,5) {$c_{\phi}$};
\node[xshift=-1.5cm,align=center] at (axis cs:0,4) {$a_{\tau}$};
\node[xshift=-1.5cm,align=center] at (axis cs:0,3) {$\alpha_{KC}$};
\node[xshift=-1.5cm,align=center] at (axis cs:0,2) {$\beta_{KC}$};
\node[xshift=-1.5cm,align=center] at (axis cs:0,1) {$\Gamma_{KC}$};
\end{axis}
%%%%%%%%%%%%%%%%%%%%%%%%%
\begin{axis}[
at={(like.north west)},anchor=north east, xshift=-3cm,
scale only axis,
xbar, xmin=0,xmax=1, %title={Relative Errors},
xlabel={Percentage Relative Error$_{1/2}$},
ytick={0.2, 0.4, 0.6, 0.8, 1},
yticklabels={},
width=5cm, height= 8cm,
x dir=reverse,
axis x line=left,
axis y line=none,
]
%\addplot[red,fill=red] coordinates {
\addplot[teal, fill=teal]
coordinates {
(0.000601462,1)
(0.00035377,2)
(0.021535,3)
(0.00003571, 4)
(0.0012904,5)
(0.0025222,6)
(0.00599214,7)};
\end{axis}
\end{tikzpicture}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\begin{tikzpicture}
\begin{semilogxaxis}[
name=like,
scale only axis,
xbar, xmin=0, xmax=1, %xbar=2pt,
xlabel={Percentage Relative Error$_2$},
width=5cm, height= 8cm,
ytick={0.2, 0.4, 0.6, 0.8, 1},
yticklabels={sa,safda,afa,afa,af},
y tick label style={text width=2cm,align=center},
axis x line=left,
axis y line=none,
clip=false
]
%\addplot[green,fill=green] coordinates {
\addplot[purple, fill=purple]
coordinates {
(0.0010015,1)
(0.000542511,2)
(0.00599,3)
(0.000279,4)
(0.05813,5)
(0.005315, 6)
(0.80101, 7)};
\node[xshift=-1.5cm,align=center] at (axis cs:0,7) {$a_{\phi}$};
\node[xshift=-1.5cm,align=center] at (axis cs:0,6) {$b_{\phi}$};
\node[xshift=-1.5cm,align=center] at (axis cs:0,5) {$c_{\phi}$};
\node[xshift=-1.5cm,align=center] at (axis cs:0,4) {$a_{\tau}$};
\node[xshift=-1.5cm,align=center] at (axis cs:0,3) {$\alpha_{KC}$};
\node[xshift=-1.5cm,align=center] at (axis cs:0,2) {$\beta_{KC}$};
\node[xshift=-1.5cm,align=center] at (axis cs:0,1) {$\Gamma_{KC}$};
\end{semilogxaxis}
%%%%%%%%%%%%%%%%%%%%%%%%%
\begin{semilogxaxis}[
at={(like.north west)},anchor=north east, xshift=-3cm,
scale only axis,
xbar, xmin=0,xmax=1, %title={Relative Errors},
xlabel={Percentage Relative Error$_{1/2}$},
ytick={0.2, 0.4, 0.6, 0.8, 1},
yticklabels={},
width=5cm, height= 8cm,
x dir=reverse,
axis x line=left,
axis y line=none,
]
%\addplot[red,fill=red] coordinates {
\addplot[teal, fill=teal]
coordinates {
(0.000601462,1)
(0.00035377,2)
(0.021535,3)
(0.00003571, 4)
(0.0012904,5)
(0.0025222,6)
(0.00599214,7)};
\end{semilogxaxis}
\end{tikzpicture}
\end{document}
以下是图片：https://i.stack.imgur.com/tBbmS.jpg
我需要与第一张图相同的风格。
答案1
对于线性图，条形图从 0 开始，但对于对数图，条形图从 10^0=1 开始。可以使用 来修复此问题[log origin x=infty]。同样，[x min=0]被忽略，但(axis cs:0,7)被推到最右边。
\documentclass{standalone}
\usepackage{pgfplots}
\begin{document}
\begin{tikzpicture}
\begin{axis}[
name=like,
scale only axis,
xbar, xmin=0, xmax=1, %xbar=2pt,
xlabel={Percentage Relative Error$_2$},
width=5cm, height= 8cm,
ytick={0.2, 0.4, 0.6, 0.8, 1},
yticklabels={sa,safda,afa,afa,af},
y tick label style={text width=2cm,align=center},
axis x line=left,
axis y line=none,
clip=false
]
%\addplot[green,fill=green] coordinates {
\addplot[purple, fill=purple]
coordinates {
(0.0010015,1)
(0.000542511,2)
(0.00599,3)
(0.000279,4)
(0.05813,5)
(0.005315, 6)
(0.80101, 7)};
\pgfplotsextra{%
\node[xshift=-1.5cm,align=center] at (axis cs:0,7) {$a_{\phi}$};
\node[xshift=-1.5cm,align=center] at (axis cs:0,6) {$b_{\phi}$};
\node[xshift=-1.5cm,align=center] at (axis cs:0,5) {$c_{\phi}$};
\node[xshift=-1.5cm,align=center] at (axis cs:0,4) {$a_{\tau}$};
\node[xshift=-1.5cm,align=center] at (axis cs:0,3) {$\alpha_{KC}$};
\node[xshift=-1.5cm,align=center] at (axis cs:0,2) {$\beta_{KC}$};
\node[xshift=-1.5cm,align=center] at (axis cs:0,1) {$\Gamma_{KC}$};
}
\end{axis}
%%%%%%%%%%%%%%%%%%%%%%%%%
\begin{axis}[
at={(like.north west)},anchor=north east, xshift=-3cm,
scale only axis,
xbar, xmin=0,xmax=1, %title={Relative Errors},
xlabel={Percentage Relative Error$_{1/2}$},
ytick={0.2, 0.4, 0.6, 0.8, 1},
yticklabels={},
width=5cm, height= 8cm,
x dir=reverse,
axis x line=left,
axis y line=none,
]
%\addplot[red,fill=red] coordinates {
\addplot[teal, fill=teal]
coordinates {
(0.000601462,1)
(0.00035377,2)
(0.021535,3)
(0.00003571, 4)
(0.0012904,5)
(0.0025222,6)
(0.00599214,7)};
\end{axis}
\end{tikzpicture}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\begin{tikzpicture}
\begin{semilogxaxis}[
name=like,
scale only axis,
xbar, xmax=1, xmin=.00001,
xlabel={Percentage Relative Error$_2$},
width=5cm, height= 8cm,
ytick={0.2, 0.4, 0.6, 0.8, 1},
yticklabels={sa,safda,afa,afa,af},
y tick label style={text width=2cm,align=center},
axis x line=left,
axis y line=none,
clip=false,
log origin x=infty
]
%\addplot[green,fill=green] coordinates {
\addplot[purple, fill=purple]
coordinates {
(0.0010015,1)
(0.000542511,2)
(0.00599,3)
(0.000279,4)
(0.05813,5)
(0.005315, 6)
(0.80101, 7)};
\pgfplotsextra{%
\node[xshift=-1.5cm,align=center] at (axis cs:0.00001,7) {$a_{\phi}$};
\node[xshift=-1.5cm,align=center] at (axis cs:0.00001,6) {$b_{\phi}$};
\node[xshift=-1.5cm,align=center] at (axis cs:0.00001,5) {$c_{\phi}$};
\node[xshift=-1.5cm,align=center] at (axis cs:0.00001,4) {$a_{\tau}$};
\node[xshift=-1.5cm,align=center] at (axis cs:0.00001,3) {$\alpha_{KC}$};
\node[xshift=-1.5cm,align=center] at (axis cs:0.00001,2) {$\beta_{KC}$};
\node[xshift=-1.5cm,align=center] at (axis cs:0.00001,1) {$\Gamma_{KC}$};
}
\end{semilogxaxis}
%%%%%%%%%%%%%%%%%%%%%%%%%
\begin{semilogxaxis}[
at={(like.north west)},anchor=north east, xshift=-3cm,
scale only axis,
xbar, xmax=1, xmin=0.00001, %title={Relative Errors},
xlabel={Percentage Relative Error$_{1/2}$},
ytick={0.2, 0.4, 0.6, 0.8, 1},
yticklabels={},
width=5cm, height= 8cm,
x dir=reverse,
axis x line=left,
axis y line=none,
log origin x=infty
]
%\addplot[red,fill=red] coordinates {
\addplot[teal, fill=teal]
coordinates {
(0.000601462,1)
(0.00035377,2)
(0.021535,3)
(0.00003571, 4)
(0.0012904,5)
(0.0025222,6)
(0.00599214,7)};
\end{semilogxaxis}
\end{tikzpicture}
\end{document}
