需要在索引条目中添加垂直空间

Question

我的代码如下：

\documentclass[executive,twoside, justified, symmetric, notoc, openany]{tufte-book}

\usepackage{imakeidx}

\makeindex[intoc, name = Rindex, title = Index of R and RStudio, columns=2]
\newcommand{\Rindex}[1]{\index[Rindex]{#1}}
\begin{document}

The upper-left window\Rindex{window} is the \Rindex{R script}, which
is where we write and run code\Rindex{run code}, giving R commands to
execute\Rindex{execute}.


The lower-left\Rindex{lower-left} window is the \Rindex{R console},
where R provides either the results of successfully executed code (known as outputs) or any error\Rindex{error} messages.\Rindex{R errors}

\printindex[Rindex]

\end{document}

它运行良好，但需要在特定条目之间插入一些垂直空间（不是全部），请指教......

Answer 1

从手册中得知\indexsetup：

夸张地说\parskip

\documentclass{book}

\usepackage{imakeidx}

\makeindex[intoc, name = Rindex, title = Index of R and RStudio, columns=2]
\indexsetup{othercode=\setlength{\parskip}{4ex plus 0.2ex minus 0.1ex}}

\newcommand{\Rindex}[1]{\index[Rindex]{#1}}

\begin{document}

The upper-left window is the \Rindex{R script}, which is where 
we write and run code, giving R commands to execute.


The lower-left window is the \Rindex{R console}, where R provides 
either the results of successfully executed code (known as outputs) 
or any error messages.\Rindex{R errors}

\printindex[Rindex]

\end{document}