.- help for ^lrutil^ .- Introduction to some logistic regression utilities ---------------------------- @grfreq@ and @grlogit@ plot the prevalence and logit of a binary variable by another. E.g. asthma by sex. Useful for scale checking. @lrplot@ plots the odds ratios from a logistic regression model graphically. Easier to get a quick overview of a model. @lrchg@ Computes likelihood ratio tests and changes in coefficients between models. Useful in model building. @lrmatx@ Stores the coefficients from a logistic regression model as a matrix for easy manipulation. @lrint@ Help file with code fragment that shows how to use the above to produce an easily interpretable graph of a model that includes and interaction of a continous and a categorical variable. Author ------- Jan Brogger, University of Bergen, Norway jan.brogger@@med.uib.no Shameless plug -------------- I am looking for internship & residency in internal medicine/pulmonary medicine US/EU. Am doing PhD in respiratory epidemiology now.