R help - Mar 2013 - Syntax for error messages

R 2.15
OS X and Windows

Colleagues,

I am running a lengthy R script (> 20K lines of code) within a GUI build in
RealBasic.  There are rare instances in which an error is triggered in R.  I am
trying to trap these based on their syntax.  I have identified three general
formats for error messages:
	Error in
	Error: object
	Error: could
Each is these is followed by some informative text.  However, these stems are
sufficient to identify these particular errors.

Are there other stems that I have missed?

Dennis

Dennis Fisher MD
P < (The "P Less Than" Company)
Phone: 1-866-PLessThan (1-866-753-7784)
Fax: 1-866-PLessThan (1-866-753-7784)
www.PLessThan.com




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On Mar 4, 2013, at 3:09 PM, Fisher Dennis wrote:
> R 2.15
> OS X and Windows
> 
> Colleagues,
> 
> I am running a lengthy R script (> 20K lines of code) within a GUI build
in RealBasic.  There are rare instances in which an error is triggered in R.  I
am trying to trap these based on their syntax.  I have identified three general
formats for error messages:
> 	Error in
> 	Error: object
> 	Error: could
> Each is these is followed by some informative text.  However, these stems
are sufficient to identify these particular errors.
> 
> Are there other stems that I have missed?
After a bit of searching the See also links from try .... You might want to look
at the "1.9.2 R messages" section in Writing R Extensions. It
describes the method of extraction of error and warning messages from a package.

-- 
David Winsemius
Alameda, CA, USA