[R] catch error/warning message in a loop
spencer.graves at pdf.com
Sat May 31 01:58:54 CEST 2003
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.
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