如何在R Markdown中只提供年份引用？

Question

我的 rmarkdown 脚本如下：

---
title: "Untitled"
author: "me"
date: '`r format(Sys.time(), "%d %B, %Y")`'
output:
  pdf_document: default
  bibliography: bibliography.bib
---

In his book Helsel explains how to approach censored environmental data [@helsel_statistics_2012].

我的 .bib 文件如下：

@book{helsel_statistics_2012,
    address = {Hoboken, N.J},
    edition = {2nd ed},
    series = {Wiley series in statistics in practice},
    title = {Statistics for censored environmental data using {Minitab} and {R}},
    isbn = {978-0-470-47988-9},
    publisher = {Wiley},
    author = {Helsel, Dennis R.},
    year = {2012},
    note = {00003 OCLC: ocn748290711},
    keywords = {Environmental sciences, Measurement Statistical methods, Minitab, Pollution, R (Computer program language), Statistical methods},
}

当我编织文件时，会得到以下输出：

在他的书中，Helsel解释了如何处理被审查的环境数据（Helsel 2012）。

问题：如何仅在引文中返回年份（因为我已经在文本中提到了作者）？

在他的书中，Helsel（2012年）解释了如何处理被审查的环境数据。

- andschar

Answer 1

在rmarkdown (.Rmd) 文件中添加以下内容（请注意，从 [@helsel_statistics_2012] 中删除 [ ] 括号）：

In his book @helsel_statistics_2012 explains how to approach censored environmental data.

一旦渲染，这将为您提供所需的输出：

In his book Helsel (2012) explains how to approach censored environmental data.

如果您只需要引文中的年份:

[-@helsel_statistics_2012]

返回：

(2012)

欲了解更多详情，请参阅R Markdown文档中有关引用的部分 http://rmarkdown.rstudio.com/authoring_bibliographies_and_citations.html

- markdly