自動格式化 csv 檔案中的表格儲存格

Question

我嘗試改編範例5.4 具有數字格式的表格來自csvsimple包，但沒有成功。

我的文件中的每一行csv都有 20 個字段，他們全部格式類似於x.xxxxxx.這是第一行：

0.500000,0.614231,0.567667,0.580000,0.787222,0.510333,0.797333,0.732000,0.851228,0.804333,0.764000,0.730667,0.879667,0.778667,0.858333,0.726333,0.884000,0.772667,0.959545,0.919667

我想創建一個表格來列印資料但是被截斷的，我的意思是，只列印 3 個小數位，例如x.xxx.

我知道有指定格式的\csvloop{}關鍵（就像上面引用的範例一樣）。tabular={}tabular={lSS[table-format=2.2e1]}

1. 由於我的表格應該有 20 列，是否可以自動全部格式化？

2. 格式應該是什麼？S[table-format=1.3]？

微量元素

下面的程式碼會產生錯誤You can't use a prefix with \hskip.}

\documentclass{report}
\usepackage{filecontents}
\usepackage{csvsimple}
\usepackage{siunitx}
\usepackage{array}
\begin{document}
\begin{filecontents*}{tab2.csv}
0.500000,0.614231,0.567667,0.580000,0.787222,0.510333,0.797333,0.732000,0.851228,0.804333,0.764000,0.730667,0.879667,0.778667,0.858333,0.726333,0.884000,0.772667,0.959545,0.919667
0.000000,0.500000,0.867308,0.891667,0.763889,0.694872,0.785256,0.729647,0.844298,0.797917,0.709455,0.675641,0.876282,0.741667,0.851442,0.710256,0.880128,0.694872,0.949519,0.912500
\end{filecontents*}
%
\csvloop{
file=tab2.csv,
tabular=*{20}{S[table-format=1.3,round-mode=places,round-precision=3]},
}
\end{document}

Answer 1

\documentclass{article}

\usepackage{csvsimple}
\usepackage{siunitx}

\usepackage{filecontents}
\begin{filecontents*}{BC14.csv}
0.500000,0.614231,0.567667,0.580000,0.787222,0.510333,0.797333,0.732000,0.851228,0.804333,0.764000,0.730667,0.879667,0.778667,0.858333,0.726333,0.884000,0.772667,0.959545,0.919667
0.000000,0.500000,0.867308,0.891667,0.763889,0.694872,0.785256,0.729647,0.844298,0.797917,0.709455,0.675641,0.876282,0.741667,0.851442,0.710256,0.880128,0.694872,0.949519,0.912500
\end{filecontents*}

\setlength{\tabcolsep}{1pt}

\begin{document}

{
\footnotesize
\csvreader[%
    no head,
  before reading=\sisetup{table-format=1.3,round-mode=places,round-precision=3},
  tabular={c@{} *{20}{S}},
]{BC14.csv}{}{%
& \csvcoli & \csvcolii & \csvcoliii & \csvcoliv & \csvcolv & \csvcolvi  & \csvcolvii & \csvcolviii & \csvcolix & \csvcolx & \csvcolxi & \csvcolxii & \csvcolxiii & \csvcolxiv & \csvcolxv & \csvcolxvi & \csvcolxvii & \csvcolxviii & \csvcolxix & \csvcolxx
} 
}

\end{document}