Is there a way to change the same line of code in multiple RMD or R script files instead of manually going in to each file and changing it?
also is there a way to change the first chunk of multiple RMD files to something else instead of manually doing it? The code in the first chunk of each RMD file isn't exactly the same but I want to change the entire first chunk of each RMD file to some other code.
One straightforward option here is to create a separate R script file that performs the process included in the R line or the RMD chunk and simply source that script file in all of the separate R script files or RMD files that use it. Then when you need to change that process you simply edit the external sourced script file.
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I have a large Markdown file (*.Rmd) and want to execute only the R commands in that file (not the text) in RStudio. How can this be done?
If I mark the whole document and try to execute it, R tries to execute also the text in the Markdown file, which, of course, results in errors.
Click on the arrows at the top right of the chunks:
I have several RMD files in one folder and I need to knit them one by one everyday to get html for each of them. Is there any way or function that I can open them at the same time and knit them by running only few lines code or one function?
did you have a look at this chapter: https://bookdown.org/yihui/rmarkdown/parameterized-reports.html. I think that is exactly what you will need.
I have 2 scripts. One is an R script and the other an rmarkdown script.
I'm using the following code in the R script to run the markdown script:
rmarkdown::render("my_md_file_path_and_name.Rmd"))
I want to have the .html file it creates output into a folder of my choosing. At the moment it outputs into the same folder where the markdown script is stored.
Is this possible? I've done a lot of googling and although there's a lot of talk on this, i can't find anything which actually works. I'm not very familiar with markdown, so possibly there's a working solution i've read, but didn't fully understand how to code it into my script.
You can use output_file argument.
rmarkdown::render("my_md_file_path_and_name.Rmd",
output_file = '/file/path/out.html')
I have a .Rnw document that relies on sourcing an R file which I occasionally change.
I have a lot of chunks that I want to update when I change this source .R file, but I don't want
them constantly recalculating as I'm doing regular edits/builds of the .Rnw file.
Is there any way to overwrite the cache=TRUE chunk option and force the document to recalculate when I change this .R file?
I have an R data frame that I run through knitr using the following code:
knit('reportTemplate.Rnw', 'file.tex') # creates a .tex file from the .Rnw one
texi2pdf('file.tex') # creates a .pdf file from the .tex one
Inside my R script, I want to remove 'file.tex' from my computer folder afterwards. How do I achieve this? It is important that I do this within my .R file, since those lines are actually inside a loop that generates 1000 different reports from that template.
There are a family of functions in R that allow the user to interact with the computer's file system. Run ?files to see functions that make it possible to, for instance, create, rename and remove files.
As noted by Josh O'Brien, in a comment to the OP, in this specific case, the command to be used is file.remove('file.tex').