[R] Increasing Console "Paste Buffer"

[Duncan Murdoch]

Sander Oom wrote:
> An interesting thought just came to me when reading this discussion! I 
> use both R and Latex and have never had the trouble of overlooking error 
> messages when debugging long Latex code!
> 
> Of course this is because when compiling a latex document, a summary of 
> the compilation process is provided at the end! If any errors occurred, 
> they will be mentioned in the summary.
> 
> Maybe R could provide the same summary as an optional part of the 
> source() command!?
> 

I think it does, doesn't it?  R will stop at the first error and print 
it, e.g.

 > source('c:/temp/test.R')
Error in parse(file, n = -1, NULL, "?") : syntax error on line 4

  If there were only warnings, it will show them at the end:

 > source('c:/temp/test.R')
Warning messages:
1: longer object length
         is not a multiple of shorter object length in: 1:3 + 1:4
2: longer object length
         is not a multiple of shorter object length in: 1:3 + 1:4

Even if you use echo=TRUE, these summaries show up at the end.  It's 
only if you use cut and paste that you might miss these.

Duncan Murdoch