A two-valued qualitative variable can be represented by a single 0-or-1-valued "dummy" variable. If a qualitative variable has three or more possible values (e.g., make-of-car, or marital-status), ...

This paper proposes a method for analysing relations between a qualitative variable and a group of quantitative variables. The method is an extension of known results concerning the analysis of ...

This is a preview. Log in through your library . Abstract Many interesting sociological questions pertain to how the association between two variables depends on a third variable. In sociological ...

Expertise from Forbes Councils members, operated under license. Opinions expressed are those of the author. A human craving for simplicity is hindering retail’s optimization of artificial intelligence ...

This function is used to illustrate the computation of sensitivity indices for the purpose of screening input variables, where there are both qualitative and quantitative inputs. It has two ...