Inference in Logistic Regression A permutation test is used for inference in logistic regression. The procedure is useful when parameter estimates in ordinary logistic regression fail to converge or are unreliable due to small sample size, or when the conditioning in exact conditional logistic regression restricts the sample space too severely. Software Douglas M. Potter <potter@upci.pitt.edu> Douglas M. Potter GPL-3 2008-04-22 application/tgz http://CRAN.R-project.org/package=logregperm