在乳胶中的表格内将$嵌套在分数中

在乳胶中的表格内将$嵌套在分数中

你好,我正在尝试制作这个乳胶表,但是我在表格第二行的分数上遇到了问题,即缺失}或忘记了$

\begin{table}[h]
\centering
\begin{tabular}{c|c|p{5cm}}
    Metric & Equation & Description \\
    \hline
    Negative Sentiment  & ${NB}_1$ where S= $S_{-1}$ & Absolute number of negative statements about a brand \\ \hline
    Negative Sentiment Ratio & $\frac{X}{$${NB}_1$$}$ & negative comments compared to the total number of statements on the Brand. \\ \hline
    Positive Sentiment & ${NB}_1$ where S= $S_1$ & Absolute number of Positive statements about a brand \\ \hline
    Neutral Sentiment & ${NB}_1$ where S= $S_0$ & Absolute number of Neutral statements about a brand \\ \hline

\end{tabular}
\caption{Caption}
\label{tab:my_label}
\end{table}

答案1

数学表达式应该包含在一组美元中,因此

$S = S_{-1}$

代替

S = $S_{-1}$

$\frac{X}{{NB}_1}$ 

代替

$\frac{X}{$${NB}_1$$}$ 

双倍美元$$会造成额外的混乱,因为它试图将 LaTeX 发送到显示数学中。

我强烈怀疑你想要NB直立,你可以用\mathrm{NB}这个。(如果不是,并且它表示一个符号,那么\mathit{NB}将是合适的。)

样式良好的表格应避免垂直线,也不要有太多水平线。请参阅booktabs包裹进行讨论。我在下面提供了建议的样式,也使用包m中的垂直居中类型列array而不是p

示例输出

\documentclass{article}

\usepackage{booktabs,amsmath,array}

\begin{document}

\begin{table}
  \centering 
  \begin{tabular}{ccm{5cm}}
    \toprule
    Metric
    & Equation
    &\multicolumn{1}{c}{Description} \\
    \midrule
    Negative Sentiment
    & $\mathrm{NB}_1$ where $S = S_{-1}$
    & Absolute number of negative statements about a brand \\
    \addlinespace
    Negative Sentiment Ratio
    & $\dfrac{X}{\mathrm{NB}_1}$
    & Negative comments compared to the total number of statements on
      the Brand. \\
    \addlinespace
    Positive Sentiment
    & $\mathrm{NB}_1$ where $S = S_1$
    & Absolute number of Positive statements about a brand \\
    \addlinespace
    Neutral Sentiment
    & $\mathrm{NB}_1$ where $S = S_0$
    & Absolute number of Neutral statements about a brand \\
    \bottomrule
  \end{tabular}
  \caption{Caption}
  \label{tab:my_label}
\end{table}
\end{document}

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