R help - Feb 2012 - Warnings from script - where?

Hi,

Next challenge today.

I have a script that I call within R:  source("foo.R")
When it finishes, I get the dreaded output:  "There were 50 or more
warnings (use warnings() to see the first 50)"

So, I type warnings() and get a nice list.  (Same error repeatedly, so probably
something I'm using in a loop.)

The difficult part is I have no idea *where* the warning is being generated.  Is
there a way to get R to either halt on warning, or give me more detail when
listing warnings after execution?

Thanks!

--
Noah Silverman
UCLA Department of Statistics
8208 Math Sciences Building
Los Angeles, CA 90095

Solved my own question:

options(warnings=2)  will turn all warnings into errors.  That should halt
execution and allow me to examine what happened.

--
Noah Silverman
UCLA Department of Statistics
8208 Math Sciences Building
Los Angeles, CA 90095

On Feb 12, 2012, at 4:38 PM, Noah Silverman wrote:
> Hi,
> 
> Next challenge today.
> 
> I have a script that I call within R:  source("foo.R")
> When it finishes, I get the dreaded output:  "There were 50 or more
warnings (use warnings() to see the first 50)"
> 
> So, I type warnings() and get a nice list.  (Same error repeatedly, so
probably something I'm using in a loop.)
> 
> The difficult part is I have no idea *where* the warning is being
generated.  Is there a way to get R to either halt on warning, or give me more
detail when listing warnings after execution?
> 
> Thanks!
> 
> --
> Noah Silverman
> UCLA Department of Statistics
> 8208 Math Sciences Building
> Los Angeles, CA 90095
> 
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