On 31/08/2011 9:58 AM, . . wrote:
Hi all,
I am getting evaluation nested too deeply: infinite recursion /
options(expressions=)? in my code.
Trying to investigate it with traceback() returns a very long list,
index go even more then 495, so I can not read everything because it
is not possible to scroll more.
Is it possible to redirect output of traceback to a file? This is the
only solution I can think, is there another?
You can also look at the .Traceback variable. The traceback() function
just prints it in a nice way. I believe the top of stack is at the end
of .Traceback, so something like
depth <- length(.Traceback)
.Traceback[depth:(depth-10)]
should print the top ten entries on the stack, topmost first.
Duncan
Any comments are welcome.
Thanks.
func<- Vectorize(function(x, a, sad, trunc=0, ...) {
result<- function(x) {
f1<- function(n) {
dcom<- paste("d", deparse(substitute(sad)), sep="")
dots<- c(as.name("n"), list(...))
f<- do.call(dcom, dots)
g<- dpois(x,a*n)
f * g
}
integrate(f1, 0, Inf)$value
}
return(result(x) / (1 - result(trunc)))
}, "x")
func(1, 0.1, exp)
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and provide commented, minimal, self-contained, reproducible code.
