[R] R extension memory leak detection question

I am writing C++ program based on R extensions and also try to test the program with google address sanitizer. I thought if we don't protect the variable from the allocation API such as Rf_allocVector, there will be a memory leak. However, the address sanitizer didn't report it. Is my understandin

[R] Neural network: Amore adaptative vs batch why the results are so different?

I am using the iris example came with nnet package to test AMORE. I can see the outcomes are similar to nnet with adaptative gradient descent. However, when I changed the method in the newff to the batch gradient descent, even by setting the epoch numbers very large, I still found all the iris expe

Re: [R] penalized maximum likelihood estimation and logistf

han, Ph.D. > Assistant Professor, > Division of Geriatric Medicine and Gerontology > School of Medicine > Johns Hopkins University > > Ph. (410) 502-2619 > email: rvarad...@jhmi.edu > > > - Original Message - > From: xiaoyan yu > Date: Tuesday, March

[R] penalized maximum likelihood estimation and logistf

Hi, I got two questions and would really appreciate any help from here. First, is the penalized maximum likelihood estimation(Firth Type Estimation) only fit for binary response (0,1 or TRUE, FALSE)? Can it be applied to multinomial logistic regression? If yes, what's the formula for LL and U(beta