try-error in batch and interactive mode (PR#1934)

[jyan@stat.wisc.edu]

I have a tiny R script performing two tasks, the first one of which may
contain error.

mammon(12)% cat z.R
version
options(show.error.messages = FALSE)
try(b <- log("foo"))  ## task 1
1 + 2                 ## task 2

Running in batch mode from a solaries machine, the second task never got
started; see below:

mammon(13)% R BATCH --vanilla -q z.R
mammon(14)% cat z.Rout
> invisible(options(echo = TRUE))
> version
         _                   
platform sparc-sun-solaris2.8
arch     sparc               
os       solaris2.8          
system   sparc, solaris2.8   
status                       
major    1                   
minor    5.1                 
year     2002                
month    06                  
day      17                  
language R                   
> options(show.error.messages = FALSE)
> try(b <- log("foo"))
> 

The second task does start if run on a linux machine.

ludwig(22)% cat z.Rout
> invisible(options(echo = TRUE))
> version
         _                
platform i686-pc-linux-gnu
arch     i686             
os       linux-gnu        
system   i686, linux-gnu  
status                    
major    1                
minor    5.1              
year     2002             
month    06               
day      17               
language R                
> options(show.error.messages = FALSE)
> try(b <- log("foo"))
> 1 + 2
[1] 3
> proc.time()
[1] 0.87 0.07 0.90 0.00 0.00
> 

The same code works well if pasted into an interactive R window on both
system, of course.

Jun Yan

Department of Statistics          Office: CSSC 4252
university of Wisconsin-Madison   Tel: (608)262-7478 
1210 W. Dayton St.                Email: jyan@stat.wisc.edu
Madison, WI 53706                 URL: http://www.stat.wisc.edu/~jyan



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