有人可以提供一个如何在R Markdown中全局使用set.seed()的工作示例吗?我基于Yihui's documentation了解this bug report,但当我将建议选项放在我的设置块中时,我收到一条错误消息knitr::opts_chunk$set(cache.extra = rand_seed)
。
我错过了什么?我目前在第一个需要它的代码块中只有一个随机种子,但是后来的块应该使用相同的种子。
[更新如下]
我的设置块:
```{r setup, include=FALSE}
#knitr::opts_chunk$set(echo = TRUE)
knitr::opts_knit$set(root.dir = "/Users/Zack/Documents/UCLA/Courses/PP290_NetworkScience")
#library(knitr)
knitr::opts_chunk$set(tidy.opts=list(width.cutoff=80),tidy=TRUE)
knitr::opts_chunk$set(cache.extra = rand_seed)
```
错误:
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Error in knitr::opts_chunk$set(cache.extra = rand_seed) :
object 'rand_seed' not found
使用种子的块是:
```{r section1_3, error=TRUE, cache=FALSE, eval=TRUE, echo=TRUE}
set.seed(01082017)
# A binomial distribution is one that produces a series of numbers according to parameters you pass it.
# We can easily make it produces 1s and 0s and then populate an adjacency matrix with them.
# The last argument controls the ratio of 1s and 0s. So, half the output will be 1, half will be 0, on average.
rbinom(1,1,.5)
rbinom(1,1,.5)
rbinom(1,1,.5)
rbinom(1,1,.5)
rbinom(1,1,.5)
```
目前,我已从我的R Markdown文件中删除了knitr::opts_chunk$set(cache.extra = rand_seed)
。
答案 0 :(得分:0)
```{r setup, include=FALSE}
#knitr::opts_chunk$set(echo = TRUE) knitr::opts_knit$set(root.dir =
"/Users/Zack/Documents/UCLA/Courses/PP290_NetworkScience")
#library(knitr)
knitr::opts_chunk$set(tidy.opts=list(width.cutoff=80),tidy=TRUE)
knitr::opts_chunk$set(cache.extra = rand_seed)
```
您尝试取消注释库(编织器)吗?
答案 1 :(得分:0)
我遇到了同样的问题,我想我已经解决了...将种子放入第一个块中,并在cache = TRUE
选项中添加knitr
。希望对您有帮助!
{r, set.seed(333)}
knitr::opts_chunk$set(cache = T)
[your code here]