David Heer, In Memoriam: Demography and Statistics
I remember arguing with David about the necessity of normalizing my variables by transforming them using standard procedures such as logarithmic transformation. True to his generation of applied statisticians, David did not see anything wrong with “normalizing” variables which were skewed, truncated, or otherwise not normally distributed. And I, also true to form, always the maverick, argued against it, feeling “instinctively” that information would be lost in the process of transforming raw variables which were distributed in their native form, that is, as originally observed. Our intellectual dispute was rooted in the need to use the General Linear Model (GLM), specifically, multivariate numerical and categorical regressions to model and predict the impact of multiple spatial moves on cumulative fertility of Filipino women. The GLM, while possessing amazing versatility in modeling sociological phenomena like demographic processes, is hostage to the demands of parametric ...