问题
In summary, I am using my script 'Graphs.R' on 'input_file1.txt' in RStudio to create a Rmd which I then knit to html. I would like to automate this process to run more files on the command line.
So far, I can get the Rscript to run on the command line using:
Rscript Graphs.R input_file1.txt
I also know that I can create an .RMD file using:
Rscript -e rmarkdown::render(Graphs.R)
However, I would like to do the following:
Rscript -e rmarkdown::render('Graphs.R input_file1.txt', 'output_file.Rmd')
are there any ideas as how to do this?
回答1:
It's not entirely clear what you are trying to do. It seems like you have a text file which has to be converted to an Rmd by an R script (why isn't it just an Rmd to begin with?) and then you want to render the Rmd. You can do this by running these commands in your terminal:
Rscript Graphs.R
Rscript -e "rmarkdown::render('output_file.Rmd')"
The first command runs the Graphs.R file which presumably generates output_file.Rmd. The second command runs a one-liner which knits output_file.Rmd into output_file.html.
If you want to read command line arguments in an R file, try ?commandArgs.
args <- commandArgs(trailingOnly = TRUE)
Also see this Stack Overflow question.
来源：https://stackoverflow.com/questions/28507693/call-rmarkdown-on-command-line-using-a-r-that-is-passed-a-file