[R] How to say "if error"

[Paul Chatfield]

Thanks Roman - you're right it can do more than I thought.  We're close now
to solving it I feel.  Essentially I'm trying to get the code below to work. 
If the condition is satisfied, it prints 2, but it doesn't save it in z.  I
want it to save it even though there's an error.  Perhaps you can easily see
what I'm missing,

x<-rnorm(0);y<-rnorm(0)
z<-ifelse(tryCatch(lm(y~x), finally=print(2))==1,
NA,lm(rnorm(10)~rnorm(10)))
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