Hello,
I have a question about AICc and effective sample size in E-surge.
If I am not mistaken, AICc = AIC + 2k(k+1)/(n-k-1)
with k = number of parameters and n = effective sample size.
I read in a previous post (http://www.phidot.org/forum/viewtopic.php?f=5&t=1597&p=4636&hilit=sample+size#p4636) that the effective sample size is: total number of capture - number of animals retired.
But it does not seem to be the case.
If I use a dataset with no individuals retired, I manage to calculate the AICc and I find the same value as in the E-surge output.
But if some individuals are retired (RC=-1) then:
the values are different if I use n = total captures - number of individuals retired,
but the values are similar with n = total captures + number of individuals retired.
Could you confirm that the effective sample size used in E-surge is total number of captures + number of individuals retired? Or am I using a wrong formula?
Thank you,
Josefa