[R] error-handling question

Roger Koenker roger at ysidro.econ.uiuc.edu
Mon Feb 24 11:04:58 CET 2003


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url:	www.econ.uiuc.edu	Roger Koenker		Dept. of Economics UCL,
email	rkoenker at uiuc.edu	Department of Economics Drayton House,
vox: 	217-333-4558		University of Illinois	30 Gorden St,
fax:   	217-244-6678		Champaign, IL 61820	London,WC1H 0AX, UK
							vox:	020-7679-5838

On Mon, 24 Feb 2003, ximing wu wrote:

> hi,
> I have a question about error-handling.  Say I want to do a simulation 100
> times, each experiment involves inverting a matrix. Occasionally the matrix
> is close to singularity,  R gives an error message and the program stops
> right there. Is there any way I can prevent the error message, assign
> something (say a NULL) to the outcome, and move on?
>
> thanks a lot.
>
>
> -----------------------------------------
> Ximing Wu
> Department of Agricultural & Resource Economics
> University of California, Berkeley
> http://are.berkeley.edu/~ximing/
> ------------------------------------------
>
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>




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