Question

我正在尝试为不同的表创建单独的Rmd文件，其中每个表都被呈现为单独的pdf。由于一些复杂的格式问题，我正在尝试使用xtable来解决这个问题。我有一些表格，我预计会填满一个8.5x11.0的页面，边距为1英寸。但是当我渲染它们时，pdf的第一页是空白的，而第二页则是整个格式正确的表格。我正在寻求帮助以使其正常工作。这是我最小的可行示例...

---
output: pdf_document
tables: true
geometry: margin=1.0in
---

```{r results='asis', echo=FALSE, warning=FALSE, eval=TRUE}
require(xtable)

# set up data frame
df <- data.frame(Label=c(letters[1:26], letters[1:13]), Numbers=1:39)

strCaption <- "\\textbf{Supplementary Table 1. This table is just produced with some random data and does not mean anything.}"

# set up xtable output
print(xtable(df, caption = strCaption, label = ""),
      size = "normalsize",
      include.rownames = FALSE,
      include.colnames = TRUE,
      caption.placement = "top",
      comment=FALSE
      )
```

这会保存为test.Rd，我使用...

进行渲染

library(rmarkdown)
render("test.Rmd"

如果我更改边距大小，它似乎只会影响左边距和右边距。如果我缩小字体的大小，它将适合一页，但我想保持字体大小原样，并摆脱空白的第一页。想法？我是一个乳胶新手，所以对于遗漏一些明显的东西道歉。

Answer 1

我认为如果添加floating = FALSE参数，它应该可以解决问题。我认为这是定义表时LaTex这个参数的!h等价物。我还将library调用与其他代码分开（并使用library代替require），但这样风格和挑剔。

---
output: pdf_document
tables: true
geometry: margin=1.0in
---

```{r echo=FALSE, warning=FALSE, eval=TRUE, results='hide'}
library(xtable)
```

```{r eval=TRUE, echo=FALSE, results='asis'}
# set up data frame
df <- data.frame(Label=c(letters[1:26], letters[1:13]), Numbers=1:39)

strCaption <- "\\textbf{Supplementary Table 1. This table is just produced with some random data and does not mean anything.}"

# set up xtable output
print(xtable(df, caption = strCaption, label = ""),
      include.rownames = FALSE,
      include.colnames = TRUE,
      caption.placement = "top",
      comment=FALSE,
      floating=FALSE
      )
```

Answer 2

感谢ted-dallas的帖子，我能够发现table.placement选项符合我的要求而无需关闭浮动...

---
output: pdf_document
tables: true
geometry: margin=1.0in
---

```{r results='asis', echo=FALSE, warning=FALSE, eval=TRUE}
require(xtable)

# set up data frame
df <- data.frame(Label=c(letters[1:26], letters[1:13]), Numbers=1:39)

strCaption <- "\\textbf{Supplementary Table 1. This table is just produced with some random data and does not mean anything.}"

# set up xtable output
print(xtable(df, caption = strCaption, label = ""),
      size = "normalsize",
      include.rownames = FALSE,
      include.colnames = TRUE,
      caption.placement = "top",
      comment=FALSE,
      table.placement = "!ht"
      )
```

这会生成我正在寻找的输出。

当Rmarkdown表可以装入一个页面时，它被推到两页

2 个答案: