R help - Jul 2009 - executing an error prone function without stopping a script

Dear R Users,

I've used this a long time ago but have forgotten. Trawling aroung the
various sources somehow does not lead me to it. How can I execute an error prone
function without stopping a script if it goes wrong ?

Thanks in advance,
Tolga


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Dear R Users,

I've used this a long time ago but have forgotten. Trawling aroung the
various sources somehow does not lead me to it. How can I execute an error prone
function without stopping a script if it goes wrong ?

Thanks in advance,
Tolga


This email is confidential and subject to important disclaimers and
conditions including on offers for the purchase or sale of
securities, accuracy and completeness of information, viruses,
confidentiality, legal privilege, and legal entity disclaimers,
available at http://www.jpmorgan.com/pages/disclosures/email.  
	[[alternative HTML version deleted]]

TU wrote:
> 
> Dear R Users,
> 
> I've used this a long time ago but have forgotten. Trawling aroung the
> various sources somehow does not lead me to it. How can I execute an error
> prone function without stopping a script if it goes wrong ?
> 
> Thanks in advance,
> Tolga
> 
> 

See ?try

Basically, wrapping the function call in the try() function will make it so
that errors do not halt your script:

result <- try( function( args ) )

You can then handle errors in your own way:

if( class(result) == 'try-error' ){
  # Error handling stuff.
}

-----
Charlie Sharpsteen
Undergraduate
Environmental Resources Engineering
Humboldt State University
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