Dear all. I am sort of beginner with R. I do logistic regression with binomial response variable and several continuous and categorical variables. In one categorical variable, zero cell occures (2x2 table looks like 7 - 0 23 - 25 This leads to overestimating of odds ratio and inflated confidence interval for odds for given variable. The variable is significant in univariate test. I do not necessarilly need odd ratio, but I need the explained deviance by this variable and I really want to keep this variable in the model. It probably matters for explained deviance. How to treat this problem? Thanks for help, Anna Bucharova -- View this message in context: http://www.nabble.com/zero-cells-in-one-variable-in-logistic-regression-tp24458629p24458629.html Sent from the R help mailing list archive at Nabble.com.
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