Beside the model, the other input into a regression analysis is some relevant sample data, consisting of the observed values of the dependent and explanatory variables for a sample of members of the ...

Due to the ongoing government shutdown, the U.S. Census Bureau has delayed the release of September’s retail sales data, ...

The application of Cox proportional hazards (CoxPH) models to survival data and the derivation of hazard ratio (HR) are well established. Although nonlinear, tree-based machine learning (ML) models ...

In the linear regression model $\text{Y}=\beta _{1}\text{X}_{1}+\beta _{2}\text{X}_{2}+\text{u}$, the coefficients β 1 and β 2 may be estimated by least squares. If the explanatory variable X2 is not ...

The standard linear regression model does not apply when the effect of one explanatory variable on the dependent variable depends on the value of another explanatory variable. In this case, the ...

Two types of diagnostics are presented for the transformation of explanatory variables in regression. One is based on the likelihood displacement proposed by Cook and Weisberg (1982) for assessing the ...