使用knitr在rmarkdown中并排的两个图像？

Question

在 Rmarkdown 中，我想并排打印来自网络的两个图像。我正在尝试这个

```{r, echo=FALSE, out.width="33%", fig.align = "center", fig.cap="Examples of the FPTP bias: In Prairies (left) and Greater Toronto area (right). Source: www.fairvote.ca"}

knitr::include_graphics(
  c("https://www.fairvote.ca/wp-content/uploads/2019/12/Western-alienation-website-FPTP-page.png", "https://www.fairvote.ca/wp-content/uploads/2019/12/Toronto-Peel-halton-2019-results-website-FPTP.jpg")
  )

```

但相反，我得到了这个 - 它们仍然打印在另一个之上：

请指教。注意：我不使用cowplot 或任何其他包。

Answer 1

包括参数fig.show='hold'。

```{r, echo=FALSE, out.width="33%", fig.align = "center", fig.show='hold', fig.cap="Examples of the FPTP bias: In Prairies (left) and Greater Toronto area (right). Source: www.fairvote.ca"}
knitr::include_graphics(
  c("https://www.fairvote.ca/wp-content/uploads/2019/12/Western-alienation-website-FPTP-page.png",
    "https://www.fairvote.ca/wp-content/uploads/2019/12/Toronto-Peel-halton-2019-results-website-FPTP.jpg")
)
```

这是现在的样子：