What's the best .Rnw editor?

Question

I'm trying to find out what people use for editing .Rnw files.

Desirable features are:

• Auto R code completion
• Auto LaTeX code completion
• Cross platform
• Automatic display of R function documentation
• Spell check
• Simple R console access
• Syntax highlighting for both R code and LaTeX code
• Document structure
• Function extraction tool for R code. With this, the user highlights a chunk of code that produces a value and the tool converts this into a function with the appropriate inputs and value.

Answer 1

Personally, I like emacs+ess+auctex. I think it hits all your points, but unfortunately it has an epic learning curve.

Answer 2

I use TexStudio (sometimes RStudio - see my other answer).

• Auto R code completion (No)
• Auto LaTeX code completion (Yes)
• Cross platform (Yes)
• Automatic display of R function documentation (No)
• Spell check (Yes, and some grammar check)
• Simple R console access (No)
• Syntax highlighting for both R code and LaTeX code (No)
• Document structure (Yes)
• Function extraction tool (No)

Answer 3

I sometimes use RStudio (usually TexStudio - see my other answer).

• Auto R code completion (Yes)
• Auto LaTeX code completion (No)
• Cross platform (Yes)
• Automatic display of R function documentation (Yes)
• Spell check (Yes)
• Simple R console access (Yes)
• Syntax highlighting for R code (Yes)
• Syntax highlighting for LaTeX code (No)
• Document structure (No)
• Function extraction tool (Yes)