![条形图不工作](https://linux22.com/image/355601/%E6%9D%A1%E5%BD%A2%E5%9B%BE%E4%B8%8D%E5%B7%A5%E4%BD%9C.png)
使用此代码:
\documentclass{article}
\usepackage{tikz}
\usepackage{pgfplots}
\pgfplotsset{compat=newest}
\begin{document}
\begin{tikzpicture}
\begin{axis}[
ybar,
bar width=.5cm,
width=0.48\textwidth,
height=.5\textwidth,
symbolic x coords={\xcoords},
xtick=data,
nodes near coords,
nodes near coords align={vertical},
ymin=0,ymax=50,
ylabel={\%},
]
\addplot table[x=column 1,y=column 2,col sep=comma] {cfets.csv};
\end{axis}
\end{tikzpicture}
\end{document}
我收到此错误:
Package pgfplots Error: Sorry, the input coordinate `8' has not been defined
with 'symbolic x coords={8,14,24,4,15,19,13,23,18,5,1,3,11,2,7,17,20}... Maybe
it has been misspelled?.
我已将其设置为,每当我更新结果时,它都会自动使用这些结果更新 .sty 和 .csv 文件,从而轻松进行修改。显而易见,\xcoords 是一个 .sty 命令,在本例中,它只写入:
\newcommand*{\xcoords}{8,14,24,4,15,19,13,23,18,5,1,3,11,2,7,17,20}
cfets.csv 文件有两列,如下所示:
column 1 column 2
8 44
14 44
24 44
4 20
15 17
19 16
13 13
23 13
18 12
5 10
1 4
3 2
11 2
2 1
7 1
17 1
20 1
删除了逗号,因为我是从 Excel 中复制粘贴的。
到底是怎么回事?
答案1
您也可以使用xticklabels from table
它,从数据文件中获取刻度标签。
\documentclass[border=5mm]{standalone}
\usepackage{filecontents} % this is just for example, the environment below writes its contents to the specified file
\begin{filecontents*}{cfets.csv}
column1 column2 % note changed column headings (removed spaces)
8 44
14 44
24 44
4 20
15 17
19 16
13 13
23 13
18 12
5 10
1 4
3 2
11 2
2 1
7 1
17 1
20 1
\end{filecontents*}
\usepackage{pgfplots}
\pgfplotsset{compat=1.14}
\begin{document}
\begin{tikzpicture}
\begin{axis}[
ybar,
bar width=.4cm, % modified
enlarge x limits={abs=.4cm}, % added
width=0.8\textwidth, % modified
height=.5\textwidth,
xtick=data,
xticklabels from table={cfets.csv}{column1}, % added
nodes near coords,
nodes near coords align={vertical},
ymin=0,ymax=50,
ylabel={\%},
]
% node x expr=\coordindex instead of x=
\addplot table[x expr=\coordindex,y=column2] {cfets.csv};
\end{axis}
\end{tikzpicture}
\end{document}