[R-wiki] Be careful of syntax!

[Tony Plate]

Philippe Grosjean wrote:

> [snip]
> - Try to write code directly executable in R in <code r></code> chunks. 
> For instance:
> <code r>
> a <- 1:4
> a  # [1] 1 2 3 4
> </code>
> 
> is better than:
> <code r>
>  > a <- 1:4
>  > a
> [1] 1 2 3 4
> </code>
> 

I like examples that are transcripts (i.e., not just the input code), 
and I suspect that transcripts are easiest to understand for beginners.

The R windows gui (the command window) has the ability to take a 
transcript from the clipboard and extract and execute just the commands 
in it (for simple commands that don't involve reading input or using 
other types of prompts).  So at least for Windows users, examples that 
are transcripts can be easily executed.

I wonder if it's possible for the wiki to serve up extracted commands 
from examples, e.g., a button beside the example that has the function 
"copy commands from transcript to viewer's clipboard"?

Not a high priority, but if something like that might be possible in the 
future, then there would be no need to encourage contributors to put in 
input-only style examples.

-- Tony Plate