In a regression analysis there may be certain data points (which may or may not be outliers) that are influential in the sense that their presence or absence significantly influences the obtained ...

Statistical modeling lies at the heart of data science. Well-crafted statistical models allow data scientists to draw conclusions about the world from the limited information present in their data. In ...

Use of the proportional hazards regression model (Cox 1972) substantially liberalized the analysis of censored survival data with covariates. Available procedures for estimation of the relative risk ...