问题描述
我正在运行带有RStudio 0.97.312的R版本2.15.3.我有一个脚本可以从各种来源读取我的数据并创建多个data.tables.然后，我还有另一个r脚本，该脚本使用在第一个脚本中创建的data.tables.我想将第二个脚本转换为R markdown脚本，以便将分析结果作为报告输出.
I am running R version 2.15.3 with RStudio version 0.97.312. I have one script that reads my data from various sources and creates several data.tables. I then have another r script which uses the data.tables created in the first script. I wanted to turn the second script into a R markdown script so that the results of analysis can be outputted as a report.
相对于source，我不知道read_chunk的用途.我的read_chunk无法正常工作，但是source正常工作.无论使用哪种实例，我都无法在RStudio的工作区面板中看到对象.
I do not know the purpose of read_chunk, as opposed to source. My read_chunk is not working, but source is working. With either instance I do not get to see the objects in my workspace panel of RStudio.
请说明read_chunk和source之间的区别?为什么要使用其中一个?为什么我的.Rmd脚本不起作用
Please explain the difference between read_chunk and source? Why would I use one or the other? Why will my .Rmd script not work
它不起作用.我收到以下消息
It does not work. I get the following message
两个简单的文件...
Two simple files...
对rmd.R进行源测试
test of source to rmd.R
x <- 1:10
y <- 3:4
z <- x*y
测试源.Rmd
Can I run another script from Rmd
========================================================
Testing if I can run "test of source to rmd.R"
```{r first part}
require(knitr)
read_chunk("test of source to rmd.R")
a <- z-1000
a
```
The above worked only if I replaced "read_chunk" with "source". I
can use the vectors outside of the code chunk as in inline usage.
So here I will tell you that the first number is `r a[1]`. The most
interesting thing is that I cannot see the variables in RStudio
workspace but it must be there somewhere.
推荐答案
read_chunk()仅读取源代码(以供将来参考)；它不像source()那样评估代码. read_chunk()的目的在此页面和手册.
read_chunk() only reads the source code (for future references); it does not evaluate code like source(). The purpose of read_chunk() was explained in this page as well as the manual.
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