[R] Run Rscript and ignore errors?

[Nick Matzke]

On Sun, Apr 26, 2015 at 1:39 PM, Adams, Jean <jvadams at usgs.gov> wrote:

> Nick,
>
> I don't know of a way to do what you want ... tell R to ignore all errors
> ... but, I do have a suggestion.
>
> Since you regard these errors as "non-essential", why not edit your code
> to reflect that?  For example, instead of writing
>      plot(df$x1, df$y1)
> write
>      if ("x1" %in% names(df) & "y1" %in% names(df)) plot(df$x1, df$y1)
>
> ... or something like that.
>
> Jean
>

Hi! I could, but you can imagine that doing that several dozen times,
reducing readability and increasing the chance of making some other
mistake.  As originally mentioned, I'm lazy.

I did find a super-easy solution, posted here:
http://r.789695.n4.nabble.com/run-Rscript-and-ignore-errors-tc4706333.html#a4706395

Cheers!
Nick








>
> On Thu, Apr 23, 2015 at 12:28 PM, Nick Matzke <matzke at nimbios.org> wrote:
>
>> Hi R-help,
>>
>> I've looked at google, the Rscript documentation and the Rscript --help
>> output and haven't found much on this.  So, here's my question:
>>
>> I have a rather long script that runs on various input datasets.  It is
>> quite convenient to run the script from the Terminal command line with
>> "Rscript scriptname.R"
>>
>> However, some datasets will cause errors. These are non-essential errors
>> --
>> just some datasets don't have certain columns so certain parts of the
>> overall analysis don't produce figures etc.  Yes, I could go through the
>> whole script and insert try() statements, etc.  But I'm lazy.
>>
>> So, is there a way to run Rscript or something similar, and just have it
>> ignore all errors (i.e., keep running through the script)?  I.e., just
>> like
>> what happens if you just copy-paste the whole script into the R window --
>> errors happen and are noted but the rest of the script keeps running.
>>
>> Thanks very much for any help!!
>>
>> Cheers!
>> Nick
>>
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>>
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>
>

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