Pgfplots 無法辨識字串數據

Question

Latex 無法編譯以下程式碼並顯示訊息

Could not parse input 'industry' as a floating point number, sorry. The unreadable part was near 'ndustry'..

看來 Pgfplots 不知道第一列資料是字串。有什麼辦法可以糾正這個問題嗎？

\documentclass{minimal}
\usepackage{pgfplots,pgfplotstable}

\begin{document}

\pgfplotstableread{
category  cond othr
industry   202  72.8
transport    0 352
households 248  45.8
services    96  55.8
rest         0  30.3
}\data

\begin{tikzpicture}
\begin{axis}[xbar stacked,yticklabels from table={\data}{category}]
\addplot table[x=cond,y=category]{\data};
\addplot table[x=othr,y=category]{\data};
\end{axis}
\end{tikzpicture}

\end{document}

Answer 1

您可以使用ytick=dataforaxis和y expr=\coordindexfor 繪圖。

\documentclass[margin=5pt]{standalone}
\usepackage{pgfplotstable}
\pgfplotsset{compat=1.15}

\begin{document}

\pgfplotstableread{
category  cond othr
industry   202  72.8
transport    0 352
households 248  45.8
services    96  55.8
rest         0  30.3
}\data

\begin{tikzpicture}
\begin{axis}[xbar stacked,yticklabels from table={\data}{category},
  ytick=data
]
\addplot table[x=cond,y expr=\coordindex]{\data};
\addplot table[x=othr,y expr=\coordindex]{\data};
\end{axis}
\end{tikzpicture}
\end{document}

結果：