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Run outfit<-nlm(..., hessian=T) and then standards error are se<-diag(solve(outfit$hessian))   Justin BEM BP 1917 Yaoundé Tél (237) 76043774   ________________________________ De : Bomee Park <bombom@stanford.edu> À : r-help@r-project.org Envoyé le : Jeudi, 29 Janvier 2009, 4h01mn 56s Objet : [R] standard error of logit parameters Hi everyone. I am now estimating the parameters for a logit model, and trying to get the estimates by laximizing the log_likelihood. The nlm function works nicely for maximizing the -(log_likelihood) and returns the parameter estimates that minim...

Hi All, I've been having a little trouble with creating a loop that will run a a series of t.tests for inspection, Below is the code i've tried, and some checks i've looked at. I've used the get(paste()) idea as i was told previously that the use of the eval should try and be avoided. I've run a single syntax to check that my systax is correct and works without any problems