[R] catch error/warning message in a loop

[Spencer Graves]

	  With situations like this, I often include something like "cat(i, 
'')" in the loop (where "i" is the index of the loop).

	  If I'm writing a function to be used by others, I might use "try", as 
described, e.g. in Venables and Ripley (2000) S Programming (p. 48).

hth.  spencer graves

array chip wrote:
> Hi, I am running cox regreesion (coxph) on a large
> number of independent variables, one variable at a
> time, using loop. At some point of the loop, the cox
> regression stopped due to some errors. How can I know
> at which variable the cox regression stopped so that I
> can pinpoint the variable that causes the problem? I
> guess this is not unique to cox regression, it is the
> problem of catching the error/warning message promptly
> in a loop.
> 
> tahnks
> 
> __________________________________
> 
> Yahoo! Calendar - Free online calendar with sync to Outlook(TM).
> 
> ______________________________________________
> R-help at stat.math.ethz.ch mailing list
> https://www.stat.math.ethz.ch/mailman/listinfo/r-help