On a similar issue, how can you detect a warning in a loop - e.g. the
following gives a warning, so I'd like to set up code to recognise that and
then carry on in a loop
x<-rnorm(2);y<-c(1,0)
ff<-glm(y/23~x, family=binomial)
so this would be incorporated into a loop that might be
x<-rnorm(10);y<-rep(c(1,0),5)
for (i in 1:10)
{ee<-glm(y~x, family=binomial)
ff<-glm(y/23~x, family=binomial)}
from which I would recognise the warning in ff and not those in ee, saving
results from ee and not from ff. The last bit would be easy adding a line
if(there_is_a_warning_message) {newvector<-NA} else {use results} but how do
you detect the warning message?
Thanks all for your feedback so far,
Paul
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