How to knit/Sweave to a different file name?

Question

By default, the knit/Sweave command will generate a tex file with the same name as the .Rnw file. I want to give it and the subsequent pdf file a different name is it possible?

Answer 1

In the header of an .Rmd file, you can specify a file name:

---
title: "My title"
output:
  pdf_document:
    pandoc_args: [ 
      "--output=Custom_name.pdf" 
    ]
---

For .Rnw files you can directly call the function knitr::knit2pdf:

knit2pdf(input.Rnw, output="Custom_name.pdf")