标题和情节之间的空白 [英] white space between title and plot in ioslides

问题描述

我正在使用默认的ioslide主题进行演示，并且很难在幻灯片上布置图.

I am using the default theme of ioslides for a presentation, and I have difficulties with arranging a plot on the slide.

我在相应的幻灯片上使用以下代码:

I use the following code for the respective slide:

```{r crint1, fig.width = 7, fig.height = 5.5, fig.retina = NULL, fig.align="center"}
options(warn=-1)
load("path_to_data.RData")
ord <- order(cor.table$COR)
barplot(cor.table$COR[ord], names.arg=cor.table$group[ord],horiz=T
        , cex.name=.6, border=F, space=.3, col="gray30", 
        xlab="Correlation Coefficient", las=1)
  grid(NULL, NA, col="white", lty="solid", lwd=0.7)
    abline(v=mean(cor.table$COR), lwd=2, lty=2, col="red")
      text(mean(cor.table$COR), 1, "Average", cex=.8, col="red", pos=4)```

这将导致以下结果:

这没关系，但我希望该图从标题的下方开始，并在幻灯片上扩展更多，因此行的名称可读且不会重叠.

Which is okay, but I would like the plot to start right below the title and extend more on the slide, so the names of the rows are readable and don't overlap.

我尝试使用fig.height和fig.width，但是它们仅扩展了图的大小，并且不更改起始坐标(这使图扩展到了幻灯片之外).

I tried to play around with fig.height and fig.width, but they only extend the size of the plot and do not change the starting coordinates (which makes the plot extend beyond the slide).

是否有任何方法可以减少标题下方的空白并使用该边距扩展绘图?我假设我必须编辑该特定幻灯片的CSS，但不确定如何.感谢您的帮助.

Is there any way to reduce the white space below the title and use that margin to extend the plot? I assume I have to edit the CSS for that particular slide, I am just not sure how. Any help is appreciated.

推荐答案

您可以尝试以下操作:

选项1:

为幻灯片提供id(此处为#slideID)并更改边距:

Give your slide an id (here it is #slideID) and change the margins:

## Slide_title {#slideID} 
<style> 
  #slideID > p { 
    margin-top: -50px; 
  } 
</style>

选项2:

用图来标识幻灯片(在我的情况下，其id是slide-1并添加以下样式:

Identify the slide with the plot (in my case its id is slide-1 and add the following styles:

<style>
    #slide-1 > p {
      margin-top: -50px;
    }
</style>

该图包含在img标记中.段落p环绕在其周围.我们想将其向上移动50px. 此外，您还可以更改绘图内部的边距，以最小化绘图区域上方的空白.

The plot is included with an img tag. And a paragraph p is wrapped around it. We want to move this one up by 50px. Additionally you can also alter the margin inside the plot to minimize the white space above the plotting area.

(为识别正确的幻灯片:打开演示文稿，显示带有图表的幻灯片，并在浏览器(或RStudio查看器)内部使用 inspect元素选项查看源代码)

(For identifying the correct slide: open the presentation, display the slide with the plot and use the inspect element option inside of a browser (or the RStudio viewer) to view the source code)

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