[R] overleap an iteration within a for-loop when error message produced

Nicolas Berkowitsch nicolas.berkowitsch at unibas.ch
Fri Mar 4 11:04:57 CET 2011


Dear R-list member,

I'm using the function pmnorm() (-->library(mnormt)) within a for-loop. 
Certain parameter values leads to an error message:
  "(In sqrt(diag(S)) : NaNs produced, In sqrt(1/diag(V)) : NaNs 
produced, In cov2cor(S) : diag(.) had 0 or NA entries; non-finite result 
is doubtful)"
obviously because "NaNs" were produced.
Is it possible to tell R that it should overleap the iteration which 
produce the error message?

Here is an example code (does not lead to an error message):

for (subject in 1:10) {

     p[subject] = pmnorm(x = subject*c(-.3,1), varcov = diag(2))

}

Assume that the 5th iteration (subject=5) leads to the error message. 
How can I tell R to continue with the 6th iteration?

Thanks a lot for you help and input,
Nicolas

____________


lic. phil. Nicolas A. J. Berkowitsch
Universität Basel
Fakultät für Psychologie
Economic Psychology
Missionsstrasse 62a
CH-4055 Basel

Tel.     +41 61 267 05 75
E-Mail   nicolas.berkowitsch at unibas.ch
Web      http://psycho.unibas.ch/abteilungen/abteilung-details/home/abteilung/economic-psychology/



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