如何向 \ifthenelse 添加多个条件？

Question

提前感谢您的帮助。如何向 \ifthenelse 添加多个条件？

我希望能够写：

\ifthenelse{varType equals 'HS' and metric equals 'KPI1'}
    {do this}
\ifthenelse{varType does not equal 'HS' and metric equals 'KPI1'}
    {do something else}

具体来说，我想将 MSL_POP$report == 'HS' 添加到：

\ifthenelse{\Sexpr{MSL_POP$exception[MSL_POP$metric == 'KPI1']} == 99999 and \Sexpr{MSL_POP$report == 'HS'}}
    {do something}
\ifthenelse{\Sexpr{MSL_POP$exception[MSL_POP$metric == 'KPI1']} == 99999 and \Sexpr{MSL_POP$report != 'HS'}}
    {do something else}

Answer 1

至少在使用包时，xifthen您可以使用\OR和\AND构造等。例如：

\ifthenelse{\equal{a}{b} \AND \equal{c}{d}}
{do something when both a=b and c=d}
{do something when either unequal}

Answer 2

嵌套两个\ifthenelse条件以实现正确的逻辑。

\documentclass{article}
\usepackage{ifthen}
\begin{document}
\def\a{T}% or {F}
\def\b{F}% or {T}
AND conditional:
\ifthenelse{\equal{\a}{T}}
 {\ifthenelse{\equal{\b}{T}}{something}{something else}}
 {something else}

OR conditional:
\ifthenelse{\equal{\a}{T}}
 {something}
 {\ifthenelse{\equal{\b}{T}}{something}{something else}}
\end{document}