opts_current:如何在knitr中工作? [英] opts_current: how does it work in knitr?
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问题描述
我试图在不同的块中设置不同的图形尺寸.我首先使用以下命令定义全局设置:
I am trying to set up different figure size in different chunks. I first define a global settings using:
opts_chunk$set(fig.width=7, fig.height=7)
然后,对于特定的块,我使用:
Then, for the specific chunks, I use:
opts_current$set(fig.width=7, fig.height=14)
但是后者总是被忽略.那么,opts_current到底如何工作?
But the later is always neglected. So, how does opts_current really work?
推荐答案
对于特定的代码块,请将块选项放在块头中,例如
For specific code chunks, put the chunk options in the chunk header, e.g.
```{r fig.width=7, fig.height=14}
这些称为本地组块选项,它将覆盖全局组块选项(临时针对此特定组块).
These are called local chunk options, which will override global chunk options (temporarily for this specific chunk).
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