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Exact logistic regression Updated

• Bernoulli (0 or 1) or binomial (number of successes in n trials) dependent variable
• Exact joint hypothesis tests
• Predictions
• Confidence intervals

Exact Poisson regression Updated

• Count data
• Exact confidence intervals for incidence-rate ratios

Postestimation Selector

• View and run all postestimation features for your command
• Automatically updated as estimation commands are run

Exact epidemiologic statistics

• Case–control studies
• Cohort studies
• Incidence-rate ratios and differences
• Matched case–control studies
• Indirect standardization

Other exact statistics

• Binomial probability tests
• Binomial or Poisson confidence intervals for means and count
• Binomial confidence interval for centiles
• Two-sample Kolmogorov–Smirnov test
• Large one-way analysis of variance
• Equality-of-medians test
• Binomial confidence interval for ROC area
• Symmetry and marginal homogeneity tests
• Two-way tables with Fisher’s exact test
• Tetrachoric correlations
• Wilcoxon signed-rank test
• Wilcoxon rank-sum test
• Tests for trend
• Spearman's rank correlation New

See New in Stata 18 to learn about what was added in Stata 18.