5 papers
Covariate Selection Based on a Model-free Approach to Linear Regression with Exact Probabilities
Laurie Davies, Lutz Dümbgen
In this paper we give a completely new approach to the problem of covariate selection in linear regression. A covariate or a set of covariates is included only if it is better in t…
Excess deaths, baselines, Z-scores, P-scores and peaks
Laurie Davies
The recent Covid-19 epidemic has lead to comparisons of the countries suffering from it. These are based on the number of excess deaths attributed either directly or indirectly to…
Lasso, knockoff and Gaussian covariates: a comparison
Laurie Davies
Given data and covariates one problem in linear regression is to decide which if any of the covariates to include when regressing the dependent vari…
Statistical Analysis of the Ricker Model
Laurie Davies
The Ricker model was introduced in the context of managing fishing stocks. It is a discrete non-linear iterative model given by where is the popula…
Functional Choice and Non-significance Regions in Regression
Laurie Davies
Given data and covariates the problem is to decide which covariates to include when approximating by a linear function of the covariates. The decision is based on r…